the sprocket rings appear to be fairly new, and the rails don't look to worn out. the pin bosses are a little worn so check out the rollers for wear.
not a too big of a job to replace the cylinder seals--I did all four on my 941B. If you have power shift and pedal steer the machine is very easy to run.
If you buy that machine wait till it gets warmer to move it. The frozen mud around the sprocket could stop the tractor from moving. Trying to force it to move could cause expensive to repair damage.
Chuck C
@ chuck c.....Thanks will do.
Yes its in the teens here for the past week!