To me that would be way to high for any non running tractor. I have these 2 for sale and only want 2750.00 for the most expensive one of them so if you count the price of tires, batteries, 3PH,paint/decals, mufflers, altenators, wires ect. without the cost of repairing/rebuilding the engines you would have a fortune in it and the amount it would be worth would make it prohibitive. Plus a U, UC, or WC doesn't have a hudrolic lift, and for using a tractor that is a must.
I like messing with old tractors and will buy another when these are sold, but I sure don't want anyone to think you can make any money on them. I have a fun hobby that pays for itself if I'm carefull and the moon and stars align just right. I bought the B and repaired it so that you get on it and hit the starter and it is ready to go to work. I'm asking 2750 for it and have that much in it not counting all the hrs of work. I did the same with the CA. It starts and runs and works good and I'm asking 2250 for it and have that much in it, so it isn't a money maker.
I would look for an old B or a CA, or and N series Ford to start on. Buy something that runs and works, then you can find out how much work goes into fixing it , then see if that is something you want to do again. You may just find a self paying hobby that you like. HTH, later, Nat