Work truck needs tlc

2003 Ford F150, Triton V8, extracab, needs repairs. Runs solid, but will overheat when the AC is turned on, the AC doesn't really work. Drivers side door doesn't roll down, airbag light is on, has some type of oil leak but is very slow...ye old work truck. Put like $8000 into it, not a mechanic, priced to sell. $2700 firm. please text, serious inquiries only, busy on weekend.