Thirty-year-old cars are investments in themselves ... thought eh Subaru flat-four does have the reputation for lasting. If you planned to go somewhere remote where the vehicle would need to function, i'd say a complete motor/drivetrain/brakes rebuild would be in order. (Careening down a mountain with no brakes, or stalled at the top with 10K of recreational gear and no way down .... )

Looks cool, and for anyone who wants to spend time and money on something other than cycling, a great hobby .... why, you could spend the whole winter tracking down parts!
Hard to beat a small, slow minivan or a mini pickup with a tent for the back.