When I was shopping for a tractor, I didn’t even think of getting a new one. My budget was about $10k max, but if I could a decent one for less than that, that’d be OK, of course.
When I found my John Deere, it was about 30 years old and had about 3600 hours on it. Folks around here, who know a whole lot more than me about such things, said that’s not really a lot of hours, if it’s well maintained. I didn’t want a loader or 4wd, so that prob helped keep the price down. I ended up getting it for about $7k.
I wanted something that could pull a double bottom plow, so its 40hp was plenty. It’s also used to pull a 5ft bush hog and a disk harrow. You don’t say you’d need any of those, so you’d prob be OK with a 35hp.
I second using Fastline, they have a very good search engine. My tractor was on it, but I had originally found it on the local farm equipment’s site.
As you can see further up this thread, I did have my water pump bearing go out, and in turn, caused the fan to careen into the radiator. So I had to repair all of that for about $400; thankfully I was able to do it myself. So, even tho you may save some $$ on an older tractor, things like that are bound to happen.
Kubota and JD would be my prefences. I would avoid Mahindra’s, partially based on the experience my neighbor has had with his new one needing work so soon, and generally less than glowing reviews of them. Ford/New Holland and Massey Ferguson are good old tractors as well.