The lens used in the Sharpstar is the same as those used in the APM 107, Astro-Tech 106 and Stellarvue 105. The only difference between the scopes is the focuser. The Sharpstar 106mm is a full apochromat (no false color at all) f6.5 focal ratio and has a strong 2.5" dual speed focuser.
The cheapest of the variants is the Astro-Tech at US$2000.
Includes: OTA, rings, dovetail, aluminium case. Condition is excellent/near new.
Price would be $1500, about 2/3 of what it would cost to get a new one from overseas.