I run JD equipment so I have a number of parts, repair forum and sales sites book marked. Rebuilt clutch plates for your model run between $4-500+, plus a refundable core charge. IMO no reason not to go with a “rebuilt” all they are doing is “relining” the plate itself. If the pressure plate needs replacing also add another $500±. Though IME with cars the majority of pressure plates just need to be “re-machined”, which means taking it to a local machine shop where they will put in on a lath and “smooth” the surface, $50-100±. I always replace the bearings because they are cheap, $20.
I checked a JD repair forum and a DIY guy who had never worked on this model said it was a pretty easy tear down which took around 2 hours. Anybody that has experience and a proper shop should be able to do it in half the time. Replacing the clutch plate is a VERY simple job once you get to it. 6-8 bolts to remove the pressure plate. The only “none common” tool needed is a clutch plate alignment tool. A plastic one can be had for cars for a couple of bucks. It can be done by “eye” but if it is not exactly lined up it becomes a matter of trial and error and can get very frustrating. At least when it comes to doing this in a car or truck. Total PITA to keep pulling the tranny out and realigning.
So, if they is nothing else wrong/broken with the “clutch mechanics” parts can be purchased on line for under $600, an additional $500 for a new/rebuilt pressure plate. Which shouldn’t be necessary unless you really chewed up the one that’s in it.
Checking the re-sale value of the same model and year ranges from $8-12,000+ depending on hours, condition and how it is equipped. The few I checked out had more than twice the hours of yours. 800+ hours on a tractor close to 20 years old is nothing.
JD have the highest resale value of all tractors in most people’s opinion. Don’t know if that applies to their compact line. I run a JD 5525 substantially bigger with over 1,500 hours and it appraised a year ago for more than 2/3 of what I bought it for over 10 years ago.
IMO the quoted repair cost is ridiculous but that’s JD for you. Mine has run flawlessly with only minor repairs that I have done myself. I bought a used hay disc-bine that needed a 1000 PTO and my tractor was only equipped with a 540. A farmer friend told me JD offers a 540/1000 “kit”. I went to my local JD dealer to order. Was told it couldn’t be done, that it has to be ordered and installed when the tractor was being built. Fortunately I believed my friend over the parts guy at JD. Went to the JD website to check out, found it and took the part number to the dealership. The guy wasn’t even apologetic for not taking the time to look it up. I asked how much to have it installed and was told over $2,000. Well I already checked out the “exploded view” and procedure and figured no way will it take that many hours. Not a difficult job but tricky for someone who doesn’t have a lot of experience. I installed it in about 4 hours. If I did it again less than 2. A third time in a JD service shop, less than an hour.
So, IMO and not knowing the tractor but assuming the motor is strong and it doesn’t have any other possible expensive fixes on the horizon it is worth fixing. But I would check around and look for a “mom and pop” shop. Order the part and bring with the tractor. You will have the added expense of have it picked up, delivered and brought back. Depending on distance a few hundred dollars. If JD has already taken it apart good chance they will hit you up for the time they have in it.
I assume a lesson has been learned here. A cheap fix would have been to deal with the break issue to begin with. Clutch plates on a tractor that is not used very much should last the lifetime of ownership. At the very least several thousand hours. I have explained this to a number of friends over the years when they call me to come over and have a look. But I have also been guilty of it myself and I know better. Just keep saying I’ll get around to it. Yup, I get around to, when the equipment becomes dead in the water and far more expensive and time consuming to fix.