Dean and Swenson have five rating levels, the lowest rating level is a (1): "One is restorable condition. These machines may be on the edge of being parts tractors, but are complete enough for restoration."
If the tractor is stuck it may easily fall in to this group. Values for this group are: Long Fender $2000, Short Fender $1350, Thresherman's Special $2750. Their numbers not mine.
If it's condition could be moved up a group you can basically double the value. Sight unseen with a lot of unknowns you are talking in the lower group.