I'd say 6-7k. Lower mileage will always pull a premium, yours is decently clean and most big ticket items taken care of. Issue becomes we have niche cars, other than enthusiasts really narrow market.

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Current garage:
'03 4.6is Proud X5 Peasant
'93 Jeep Cherokee (XJ)
'07 Jeep Liberty (KJ)
'88 Jeep Comanche (MJ)