Help me find value for Technics SP-10 Direct Drive Turntable


I have a Technics SP-10 Direct Drive Turntable that I would like to list for sale on Audiogon. However, Audiogon Bluebook cannot give me a current value to set as sales price (according to Audiogon Support, they do not have a record of recent sales).
Audiogon lists values for SP-10 MKII and MKIII, but these are not my model. Mine is the original SP-10, which is what is listed on the Serial Plate (no MK, I, or even M is shown).
This unit is from the estate of a relative who purchased it in 1975. It is in the original shipping carton, has never been assembled or used. Serial number is 60123. 
The unit does not include a tone arm, base or dust cover.
Thanks for any help you can give me. I am skeptical about using the MKII value as an approximation for this unit.  
128x128mikerossmeier
The MK I is not nearly as desirable as the II, IIa or III. Search eBay for similar items check "completed only" and you'll see the results of the recently advertised ones. Green sold, Red didn't, black didn't or they accepted offer.
My best guess is $500-700, maybe a bit more because of condition. But as one in the market for a MK II, I can you they go for under or ~$1k. Cheers,
Spencer
MKIII is the best model.
Plain SP-10 is close to the value MKII.
No arm/base and no dust cover brings it to the value of $4...500 range for fully operable unit.

Pretty good estimation sbank -  about $500 for an unused and still in its original carton SP10.  Theres a current listing for one on eBay at $425 - its been offered for a while with no takers.

The MK 2 is a completely different table, the MK3 even more so.  A MK2 typically sells for $ 700 on average for a working one - $ 400 for one that needs service.  A MK3 anywhere form $5K and up depending on condition.

Best of luck


Peter