I just made a transport cradle for my 340 using plans from this thread last weekend. Very easy to do and should serve the purpose. I sat mine on a small HF dolly to move it around my garage.

http://www.forabodiesonly.com/mopar/showthread.php?t=256797


Follow my Duster 340 restoration progress on FABO http://www.forabodiesonly.com/mopar/showthread.php?t=225784

Kevin