I have an 83 CJ-7 and a friend of mine wants to trade for his 93 Wrangler 4cyl Soft Top. The deal he wants is my jeep and $2k. His Wrangler has 70k miles, a/c and is in pretty good shape, the only kicker is the 4 banger. He placed a value of about $6k on his jeep and about $4k on mine. Any opinions?