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Looks like this thing is ancient.
Even Reverb only lists a few parts.
I'd depend my judgement on the quality of the sound, the feel of the keys, and the trustworthiness of the tech who did the refurb.
It could go 50/50.
Maybe it's a restored vintage gem?
Maybe it's a lemon from hell.
Even if you're a gambling man, that price is negotiable.
You might shave 15-20% off the price if anything looks or feels dodgy.
Good luck
