Matt,
    It would be hard for me to say what they are worth, posting pictures would help and I am sure others would be much more qualified than I to give you a fair evaluation. There are also books out there which list relative values of used tractors in varied conditions. I would also check out some of the magazines and websites to see what recent auctions brought. Perhaps the best would be to get replies from members who have restored this particular model...I have not.  It also depends on how desperate you are to sell..... if you can afford to hold on to them awhile, I am sure you can get a decent price.
..........My  2 cents....
                Cal 
Well, you got me thinking, I had to go look it up in a book of tractor values written in 2001 and they list your machine as being between 1100 and 1800 dollars in the condition you describe....while it is a good book, the info is probably outdated and i'm not sure how much I would hold to those values listed. At least it gives you a starting point.