I would say way too high with all that wrong. I bought mine for a lot less and it was very good shape inside and out, brand new tires, new water pump, timing belt, window regulators, brake pads and a few other tid bits.
If you do consider the purchase, I would get it for at least an overnight test drive. Park it somewhere and let it cool and let the oil settle for at least several hours. Make a scratch mark on the dip stick at the top of the oil level. Then hit the highway for 150-200 miles, park it in the same spot and let it cool again. If the oil level is any lower than your mark, let them keep it because it will most likely be one of the legendary oil consumers.
You can search for other posts under my username for the complete saga of my '99 Ironman.