1986 Chevrolet K10 Silverado custom 4x4

1986 Chevrolet C-10 Custom Additional Info:

Custom 1986 Chevrolet Crew Cab short bed, 4x4 matte black "Dream Truck". Runs good, drives decent. 6" lift m+ 3" body life. Skyjacker shocks and steering stabilizer; Fitech fuel injection programmer + pump; Edelbrock top end kit and filter; locking hub... Lots of work done on this custom classic rig - solid and dependable - starts and goes every day (including when its cold (20 degrees +/-) . Truck started out life as 2WD, single cab that was extended and 4WD added before I purchased. I got this at a time when I really need more gas efficient transportation... prob gets 10-12 mpg and I am just starting out as an electrician apprentice... so, got the "dream truck" too soon and I am keeping the Camry.
Needs the following done to be perfect: drive shaft balanced (slight vibration at 35-40 mph then smooth on out); has rust -through on driver's side floorboard.