I have an 85 chevy 3/4 ton 4x4. I am buying a rough country 6" lift and 315/75/16 bfg mud terrain km tires for my truck. What size of rims should I buy? Do I need 16x8 or 16x10? What is all involved in installing my lift kit? Do I need to lengthen the brake lines? Do I need a steering block? The kit comes with leaf springs for the front, u-bolts, blocks for the rear, shocks, and a steering arm. What else do I need to buy? Are suspension lift kits hard to install? Thanks for the help.