How much could I get?

Hey all, I have a 1986 300zx NA. Its in fair condition. The paint is chipping and there is rust on the fenders, right through. I have chrome covering it up though. The interior is stained, carpet wise, not too bad though. Ive put new brakes (all round), new tires, new ball joints, and a Clarion head unit. The antenna is broken and the right high-beam doesnt work. Other than those things, its in alright condition. runs good except the power steering is going, need to fix that. Tell me what you think! I got it for $2000, invested $2000

Not saying that i will but if i was i would pay 2,500 at most 4,000