As was already mentioned, you want to make sure the fence and mitre gauge are there.
Other than that, I don't feel a 3hp motor on this beast is going to keep you happy, especially if you take advantage of blade capabilities.
I understand the allure of some of the old, heavy iron, but it would not be my first choice. Having worked on some different pieces I find that I like the capabilities of "newer" stuff. Better fences, standard miter slots, wider rip capabilities...and when it comes time to move it...so much less weight.
I like and appreciate the brute and weight of stuff like shapers, jointers and planers...not on a tablesaw...I've found my various cabinet saws to be very adequete to run.
My opinion...$500 for this motor less saw...too much money.
OK....just saw your latest post and pic.....How much is this guy willing to pay you to haul it away?
Doug