I just bought a 1981 short bed...need advice

[supermaxxbasher]

Hey guys I am new to this board so I am gonna need some advice on what I should do to my truck. The truck is a 1981 chevy short bed with a rebuilt 350 engine and tranny. The body is in really good shape and it has a good paint job. I want to know what rims look good on these trucks I was thinking something in the 17" range. I already have plans for the engine it should make around 400 horses when i get done. Another question I have is who makes a diff spool for these trucks cause I want to have full time posi. As for the height of the truck its already lowered to within an 1" of the top of the front tires but the back needs to come down about 4" or so. I also want to know what kind of mufflers I should run, I want something not to loud but has a definite aggressive sound.. I have looked around on this board and noticed alot of tube type front grills where can I get one like that and some have euro tail lights that I want but can't find. So any help I can get is appreciated.