81newb

Hello all from a novice. I have an 81 wagon that I want to get back running. (the suburban is killing me). Needs clutch and body parts. So my stupid questions are 1) where do you find out what years can swap what body parts? 2) is it too much for a novice to tackle a clutch( never done anything like that but I am a detail guy) 3.) when replacing the clutch what other things within budget should one consider doing. Thanks for you input hope to be a contributer some day and not just a sponge.