Thanks S/R for finding that link. It always amazes me that owners don't have a clue about what they own.
That is NOT a 1979. It's a 1984. It has a sleeve hitch on it and there is no surprise that it also has wheel weights. I have some concerns.
1. That is a side-drive tiller but I can't tell if the extensions are there or not. It should be 41 inches wide with the extensions in place. There is a removable tine extension as well as a removable hood extension and drag shield extension. Make sure all of that is in place.
2. There is a Hydra-Bagger and then there is a Hydra-Vac. I don't see the bagger frame, bagger hood and the three net bags that sit in the frame. Maybe this is not a Hydra-Bagger after all. Maybe this is a Hydra-Vac instead. The vacuum unit that is visible in the photo and has a hose on it is the same, whether it is included with they Hydra-Bagger or the Hydra-Vac. The difference between the two units is that the Bagger has the bagging hood, frame and bags that mount on the rear of the tractor but the Vac spits all the debris into the converted dump cart that is pulled by the little tow plate welded to the back of the vacuum unit.
So if this is a VAC and not a Bagger, then where's the dump cart with the VAC conversion that encloses the four sides of the cart along with the mesh top that allows the air to escape? If it is a Bagger, then where's the bag frame, hood and bags?
When you go there, ask those questions. Get the guy to connect the vac unit to the PTO and prove to you that it works. He does not have to mount the vac physically to the tractor to make the fan spin but you need to know that the vac motor works and isn't puking oil out the seals or has a broken shaft.
Make sure that the bracket that bolts to the rear of the tractor and accepts the vac unit is there along with the BOOT and deflector that bolts onto the mower deck.
3. I don't think that this cab was ever on this tractor. This cab is from tractor that was made before 1977 when the tractors were painted Desert Sunset. Where are the doors for this cab? If he has them, what shape are they in? The prices I quoted are for attachments that are COMPLETE and in good repair. Make sure that the cab's front mounting brackets are there. Go now to the Ingersoll site and start printing out the parts books for the J-2 cab, the side-drive tiller, the Hydra-Vac, the Hydra-Bagger and the dump cart.
Go there with those books and start comparing what he is selling to what's in those books. No matter how you cut it, there is a lot of value in that package but you need to figure what might be missing.