1994 Silverado, Brand new Engine/Transmission, Mostly new parts 4X4 Positraction

**For Sale** My truck is a 94 Silverado. The paint job is 3 years old. The transmission has 60 miles on it with warranty until next May. The engine has just over 1,000 miles and I did the 500 mile "break in" oil change already. Engine has only had synthetic oil and premium fuel. New parts are as follows.
A/C accumulator, P/S pump, Chrome Alternator, all sensors, distributor, head/tail/turn light lenses, gauges, interior carpet, turn signal, chrome headers, starter, water pump, radiator, fuel pump/filter and so on.
The truck itself has never seen salt nor snow, has a "posi traction" rear-end. Good tired, step bars, clearance lights, rear sliding window, power locks/windows, Cruise control, goose neck hitch built into bed (never used it, it flips into the bed), towing package, shocks have about 2k on them, CD/MP3 player, step bars.
Just a couple of days ago I noticed the idle was off and it was running rich,Engine light kicked on for about 3 seconds, still runs fine, just rich, possibly a vacuum leak, goes down the road fine. ** Engine is still controlled via OBDI.**. I have over $20k into it and need to stop playing with it or I will never get rid of it. I am attaching photos of all minor cosmetic blemishes. Also, A/C is leaking, will need to be fixed.