Well first clean that b up inside and out and preserve it.This will give it some luster and alloy you to really check it over in general first.Then once the normal tune,checks focus on upgrading certain components.This pic is of my 25 years of ownership being I bought it brand new in 1987.Hope this gives you some incentive to get it detailed and super clean being that is a NICE truck that needs some tlc.Good luck and glad you joined the site.