im not exact about the rims, but u should get a fast bag kig. f-b-s-s. that means it would have 8 valves. u would want to get atleast a 6 gallon tank and make sure the compressor that comes with it is atleast 50% duty. 100% duty is highly recomended. it will save money in the long run. as for the air lines and fittings, for more speed u should get a 1/2 but if u want to save money, u can get 3/8.
then u need brackets. i have front brackets fro the s-10 cuz its for the g-bodies too. if u want it p.m. me. i'll sell it real cheap instead of u buying new ones for alot more.
i seen people put 18's on a s-10 bagged and with certain mods they lay frame. i cant tell u about the rims tho. only the kit