Maybe I can help. I recently sold a Technics SP-10 Mk II. It didn’t belong in the Smithsonian, but it had documentation for the table, arm, obsidian base and even the cartridge frequency readout, plus it was in the original box. Anyway, I listed it on Cr******st for $800 at 3:00 am, and by 5:00 am two buyers wanted it. That started a bidding war that went to $1300 before I did finally agree to sell it to the first buyer for $1000. I see them all the time for $2-3000 on various websites, up to $10K with highly modified bases. I also realize that this is the somewhat less desirable Mark I.
So, my advice is to price it (depending on condition) at least $1,000. These are very sought after tables and some collector will ante up for any reasonable price, as long as you are willing to wait a little. I went for the quick sale since I had just re-acquired it for $400 the weekend before. If I were selling it again, I would have priced mine higher, but so what! Good luck with your sale.
