The Sharp star 115 is likely the exact same scope as the Teleskop-services TS115 APO. Sharp star are a brand. You can read plenty on the TS115 on the Cloudy Nights forum in the Refractor sub forum. I used to own a TS115 and can say without reservation, it is an excellent imaging scope, and would suit your requirements with the TS reducer corrector added.
https://www.teleskop-express.de/shop...g-sensors.html
The reducer fits directly to the female M68x1 thread of the apo.
The triplet objective combination of (Lanthanum glass and FPL51) is equivalent to a triplet objective using a single FPL53 element. Colour rendition is not a problem with this scope.
https://www.teleskop-express.de/shop...P-focuser.html
Update, I sold my TS115 to Alex.