new to site with 81 3x3 1 ton long box

[lilman]

hey guys ! i had the luck to pick up a real nice 81 3x3 1 ton long box, 454 auto trans
25,000 original miles . its real nice with a poor repaint by the original owner 25 years ago . one small rust spot in the rear drivers side door the size of a quarter. the factory chalk marks are still on the frame in the engine compartment. Any one have some insight or pics of retrofitted interiors? as well as any sources for mounts and parts/ pieces to complete a d max swap? what lifts have people used and which give the best ride? only wanting a 4 inch lift to run 35s also a source for the round corner chrome rear bumper,sport syle? mine had the more utilty style. also going to reshoot it the factory two tone brown /beige any ideas on proper paint code for this year? i have come up with dark chestnut metallic/ santa fe beige. is this correct for the 81 model year?
any help would be greatly appreciated.
TIA