probably the lowest mileage 1984 Subaru out there in the wild in that kind of shape combination, ofcourse, Subaru has their own collection but those aren't for sale nor are they out in the wild.
if i was you, i would be asking 3,800 and come down as low as 3,500.
my brat has 68,000 original miles currently but it isn't in that great of shape since it was a farm vehicle and abandoned from 1994-2016, the interior needs help and so does the body but what the heck, oh well.
so ask for the higher price of 2,500-4,000 range, it really is worth it, even if it's just a 2WD.
forgot to mention, don't get desperate, the longer you have it posted for sale, the more forums your car will appear on, trust me, word always spreads will classic Subaru's, especially in that kind of shape.