That is a nice truck. The diesel certainly makes it very, very rare, I personally have never seen a 4x4 in person.
I bet the sheer thoughts of stocking one of these in 85' would make the dealer nervous for the year or so it sat there. The few 2wd's that sold as commuter vehicles were fairly scarce, but a 4x4 would even eliminate most commuters.
How much did the diesel add to the value over a 22r or re? Looked like a 4-5k truck in this area with the gas to me, maybe Cali is alot different.
Congrats to the new owner.