I don't know anything about scat trak loaders.
That being said, I have a buddy who has a Gehl skid steer that is about 12 years old, he bought it for about 7k, used it for his project at his home, then had it disintegrate, the cost of paying someone to repair it exceeded what it was worth.
I have a 1987 Case 1835C with a little under 2400 hours, I paid 3K and have put about another 3.5K into it with a complete engine rebuild on the continental TMD20 diesel, some new lines, hoses and all new filters and fluids, and some bucket work on the 4-n-1.
With what I have learned if I was to shop around for an under 10K skid steer again, I would find a good used Case 1845C. A lot of guys will crack on the Case machines, but they are simple, and easy to work on for the most part. Also the 1845C is a good sized machine, has a Cummins engine, plus they sold a ton of them.
Make sure you look a machine over top to bottom, look for cracks, look at all of the filters, look in the belly and see how much crap is in there, look at the hoses, maybe take a jack with you and check for chain slop and the wheel bearings, don't get too excited about any machine. Usually you can find the best deal from a private party, but be careful of any scams. I found my machine on craigslist.org
Good luck,
Peter