container chassis drawings

[Rign14]

Does anyone know if there are scale drawings for making container chassis (for 20 and 48/53' Containers). I am working on my Transtart that will look like the one from my very first driving job and I would like to put a container on the back (as well as a 45' rail pig and a 1 hole tanker trailer), these are what I pulled while working for CMX Trucking (CSX Intermodal). I have never scratch built but a chassis is fairly straight foward, if you have drawing to work from. Thanks

[Superpeterbilt]

Italeri made a container trailer kit. I dont know how far off the chassis would be from what your looking to build, but its not a bad kit.

[Tesla]

Cliff here's a site you might find helpful: http://www.cheetahchassis.com/containerchassis/