We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'Rio Grande'.

HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
$39.99
Time Remaining: 2d 16h 14m
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
$29.79
Time Remaining: 4d 21h 24m
Buy It Now for only: $29.79
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
$69.95
Time Remaining: 4d 22h 19m
Buy It Now for only: $69.95
Built O On3 Rio Grande Section House American Models Laserkit
Built O On3 Rio Grande Section House American Models Laserkit
$79.89
Time Remaining: 6d 13h 13m
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
$69.95
Time Remaining: 6d 13h 41m
Buy It Now for only: $69.95
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd
$66.01
Time Remaining: 7d 4h 25m
Buy It Now for only: $66.01
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
$329.95
Time Remaining: 7d 20h 14m
Buy It Now for only: $329.95
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 315 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 315 nd
$66.01
Time Remaining: 8d 4h 30m
Buy It Now for only: $66.01
Bachmann On30 Denver  Rio Grande Western 136 Black  Green 2 6 0 25242
Bachmann On30 Denver Rio Grande Western 136 Black Green 2 6 0 25242
$129.99
Time Remaining: 10d 11h 34m
Buy It Now for only: $129.99
Bachmann On30 Denver  Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
Bachmann On30 Denver Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
$255.99
Time Remaining: 11d 13h 26m
Buy It Now for only: $255.99
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
$49.95
Time Remaining: 17d 9h 48m
Buy It Now for only: $49.95
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
$149.95
Time Remaining: 20d 11h 19m
Buy It Now for only: $149.95
RIO GRANDE Chasing the Narrow Gauge Volumes I  II  III By Robert W Richardson
RIO GRANDE Chasing the Narrow Gauge Volumes I II III By Robert W Richardson
$150.00
Time Remaining: 20d 19h 11m
Buy It Now for only: $150.00
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 3145 n
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 3145 n
$66.01
Time Remaining: 21d 4h 5m
Buy It Now for only: $66.01
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
$69.95
Time Remaining: 21d 20h 15m
Buy It Now for only: $69.95
HOn3 HO CRAFTSMAN RAGGS TO RICHES RIO GRANDE SOUTHERN TELLURIDE DEPOT KIT NEW
HOn3 HO CRAFTSMAN RAGGS TO RICHES RIO GRANDE SOUTHERN TELLURIDE DEPOT KIT NEW
$259.95
Time Remaining: 24d 20h 14m
Buy It Now for only: $259.95
Durango Press 59 HO Denver  Rio Grande Western Water Tower HOn3 Kit
Durango Press 59 HO Denver Rio Grande Western Water Tower HOn3 Kit
$56.68
Time Remaining: 26d 13h 41m
Buy It Now for only: $56.68
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
$54.79
Time Remaining: 27d 21h 54m
Buy It Now for only: $54.79

Other On30 Scale train items recently purchased through this site:

RIO GRANDE Chasing the Narrow Gauge Volumes I II III By Robert W Richardson
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN OUTFIT CAR 01789
Bachmann On30 Denver Rio Grande Western 138 Green Boiler DCC 2 6 0 29301
Bachmann On30 Denver Rio Grande Western 136 Black Green 2 6 0 25242
On3 CRAFTSMAN SSLTD RIO GRANDE SOUTHERN FORD INSPECTION CAR KIT UNSTARTED
Built O On3 Rio Grande Section House American Models Laserkit
On3 On30 WISEMAN RIO GRANDE SOUTHERN MODEL T FORD INSPECTION CAR 1 KIT SSLTD
On3 On30 WISEMAN MODEL SERVICES RGS RIO GRANDE SOUTHERN PLOW FLANGER 02 KIT
HOn3 HO CRAFTSMAN RAGGS TO RICHES RIO GRANDE SOUTHERN TELLURIDE DEPOT KIT NEW
On3 On30 WISEMAN MODEL SERVICES RIO GRANDE SOUTHERN DRAG FLANGER 01 KIT RGS
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Flanger 01 Kit DP 51
HO HOn3 Scale Durango Press HOn3 Rio Grande Southern Plow Flanger Kit DP 42
HOn3 Narrow Gauge Durango Press Rio Grande Southern Plow Flanger 02 kit
On3 On30 O CRAFTSMAN RAGGS RIO GRANDE SOUTHERN PLACERVILLECO DEPOT KIT NEW
Durango Press 59 HO Denver Rio Grande Western Water Tower HOn3 Kit
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 3145 n
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 315 nd
BINKLEY KIT BUILT HOn3 NARROW GAUGE DENVER RIO GRANDE DRGW BOX CAR WAGON 15 nd