Are these fenders interchangeable?

If you have a tractor with this fender style:

And it has no fenders, could you put the fenders off a tractor with these kind:

On? I'm looking at a few tractors, and two of them have no fenders, and I'd really not like to sit on the charge pump.

Also, another question:
Can you take a gear drive and put a hydrostatic trans in it? I'm asking because one of the tractors has a running engine but seized transmission.

Thanks in advance.

I do not think they will work as yours is a narrow frame and the 1250 is a wide frame. You might be able to rework it to fit?