crew cab and four door guy HELP!!!!!!!!!

[72burbanbuilder]

guys im way in over my head, and i need some help. im building my own 72 chevy crew cab, with a 1997 ram air lt1, paired with a 4l80 auto trans i'm useing my stock 205 transfer(after i rebuild it) and also useing my 12 bolt rear. im gearing it 3.73's any tips on that set up can help. But i need tips and help about building my cab. here is what i have so far. so if you have ever built, help build, know how to build or even have a book on 1967-72 crew cabs HELP!!!!!!!!!!!!!

photos
(1st) right after the cut. i left extra sheet metal i case i f^&k up
(2ed) whole 3 door cab soon to be forth door cab
(3ed) truck cab to cut and make cab back