First...how tight a budget?
Are you mechanically inclined?
How much property do you need to maintain..what tasks do you have to do?
You can find quite a few older Deeres around...under $10K. Reckon the same applies to the Kubota (the early
BX2200's are running 8 or 9 thousand now) and NH (Ford)as well. There are lesser known brands from China, Korea and Japan...others too.
However, if you don't have a clue what you need or not mechanically inclined...maybe you don't want a tractor. Better a lawn machine for around your house and hire someone for the other tasks.
When I was looking...needed something to replace an ancient Wheel Horse lawn tractor that could plow snow. First choice was a Kubota
BX2200 for around $13K. Nice machine..best suited for our ~3 acres. But...wifey was dead set against spending that much.
Found a 10 year old (when I bought it) Deere 670. It's a bit bigger then we need for most jobs but has done an admirable job during a blizzard (30" plus) and clearing a heavily overgrown section of the property (about 2 acres or so including my neighbor's part of it).
This machine cost $8500 including FEL and a rear finishing mower (Befco). That price was where we wanted to be. A machine with this size and HP would be great up to 6 or 7 acres for maintenance. Maybe a 2 or 3 acre garden, but not a farmette sized area.
We'll replace this machine in a year or so, I guess...probably with a 790 or something like that.
In your circumstances...if you can't go 10 grand...maybe you'd better consider if you really need a tractor.
I see in your profile you have an Iseki. Isn't that tractor adequate for your 5 acres?