I will have a good look through your build - glad to hear you're almost done. All the wood is out of my cab now apart from the two main rails. Still have to remove the wood from the doors which I will start this weekend. Because it is so rotten it splits and comes out easy.
I fabbed a die for my tube bender on the weekend so I can bend one inch square tube with it. Tested it and it works well - will be time consuming though.
haha - not 'almost done' really - just the re-building part! We still have wiring and interior paint/upholstery - then exterior bodywork and paint. Still a long ways to go, but a LOT behind us now....
Good luck with bending the square tube - we tried and failed and ended up notching square tube and welding it to fit curves.