welcome to the garage Tom, lots of info here and tons of
manuals available online here [some 57 ones only listed in the 'by year' section] ... the cabs are identical on all sizes of conventional cab trucks, and front metal is the same for 1/2T to 1T, so you're in luck, all the patch panels available from the vendors [see our links section] will work for you - some of the mechanical hard parts might be scarce, but the parts wanted forum here works well .... they're always worth saving when there's a 'family attachment', go for it

Bill