1994 dodge 1/2 ton

Starts and runs but needs a tune up and fresh gas. No heat no AC no radio. There is a short somewhere that messes with the tail lights and drains the battery. The transmission works but it slips out of gear then back in. It might just need a tune up or linkage adjustments, I'm not sure. Tires will not pass inspection but will hold air. One tire has a slow leak that takes about a week to go down. Cash only. No haggling.