I have a 5020 allis I think it is 25hp not sure, does anyone know what it is worth. Belly mower, diesel, 3-point and is in nice shape. I've always had fords to sale never a allis. Would love any input thanks.

I paid $2800 for a 5030 (about 5 more HP) at an auction two years ago. 2WD, turf tires, broken tach. It does run great and is very easy on fuel, just remember to clean the radiator screen often, or else it will overheat.

I've seen them anywhere from $3000 to $5000 listed that is I've even seen one listed for $8000. I guess if it had 4WD and power steering and maybe remote hydraulics and super condition maybe $6000 to 6500 with low hours. I would guess it would depend if yours has rear turf or ag tires with the belly mower.
I just got mine up and running from setting over ten years it has absolutely no leaks and I've ran it for over seven hours since the restart at all rpms and it has barely used a quarter of a gallon of fuel. The throttle response is immediate and it starts great. The downside is it has no power steering, no live pto and no remote hydraulics and worst of all there are almost no parts available. My two cents CT