Hartland makes some nice inexpensive 4 wheel kits as well
Here is the underside of the Quarry Flats that I build… Keeping it KISS.
(http://i1234.photobucket.com/albums/ff403/dave2-8-0/photo-102_zps9f5e4443.jpg)
(http://i1234.photobucket.com/albums/ff403/dave2-8-0/photo-101_zps5d91ee44.jpg)
(http://i1234.photobucket.com/albums/ff403/dave2-8-0/photo-100_zps8b557b8b.jpg)
I use the Ozark Min. Coil Spring Braced Journals [ #1011 ] And Bachmann small wheel sets.
(http://i1234.photobucket.com/albums/ff403/dave2-8-0/photo-099_zpsb03e827f.jpg)
(http://i1234.photobucket.com/albums/ff403/dave2-8-0/photo-098_zpscfc73392.jpg)
Note that the journals on one side are fastened to the support beam, and one support beam is removable so you can put the axels in and or remove them. I body mounted Bachmann couplers directly to the frame. The flat is 6 1/2" long, which scales out to 11ft. in 1:20.3 and only 3 5/8 wide = 6’-2" I can draw up a plan if any one is interested.
Dave,
I would love to have the plans for your ‘Quarry Flat’. I am really impressed at the quality of your shorty gondola kit, that I would like to try this too.
Dave,
I owe you a huge 'Thank You"! You provided me the answer to centering the standard Bachmann couplers after removing them from the truck tang. I love the simplicity of the cotter pin.
Bob C.
Those cars are slick, Dave!
I too would be interested in the plans for the quarry flat if you make them 
Great quality in your kits!
Thank you everyone for your help. I got everything I need plus some extras things that I did nopt think of, from everyone. John was hudge help. Thank you.
The only thing Im looking for and I should be set is the plans for the log buggy ( Plan 23 G-scale log buggy Jun 96). If anyone has a copy of these that would be great. I tried searching everyone and cant find any. Sidestreet does not have any more copies.
I’ll look…if they were published in GR I should have them.
Eduted to add: Got’em, I’ll make some copies and send’em up to ya…
Sweet thanks Ken.
Sorry, Shawn. Wouldn’t you know it? Of all those plans I sent, that one is missing. It’s prolly laying in the basement somewhere.
Looks like Ken beat me to it!
I have the plans and was planning to build some someday. I look forward to seeing yours when you build them!
John Bouck said:
Sorry, Shawn. Wouldn’t you know it? Of all those plans I sent, that one is missing. It’s prolly laying in the basement somewhere.
Thats ok John. You gave alot of great stuff especially the 4 wheel cars and shorty car plans and a few other things i plan on building that I didnt even think about.
In the mail…