Your tractors seem a lot more expensive then they are here in Michigan. Are these dealers or craigslist/facebook, have you found the local auctions? Maybe it's a regional thing but there's so many tractors here in the 4-6000 hour range I don't even look at anything with 8000. And yes I look at cheap old stuff. I currently run a Case 970, my only complaint is that it's pretty loud inside the cab. Sure would be a lot nicer to have something newer with AC.
I also agree, I wouldn't want a loader on my baling tractor. My Ford 3600(40hp) with a loader moves round bales just fine. Maybe consider a smaller loader tractor for that kind of stuff.