I wanted soooo much to get my old girl back out on the track but im so involved in classic car racing in europe that i just cant do it

I know its a bit cheeky but im fishing for advice on what i should put it on e-bay for as i am so out of touch with the classic kart market.
The chassis is a Zip GP which is perfect in every way
The engine is an air cooled rotax 125 which has done zero - yes zero- hours since a full rebuild by Alan Dell in 1994.
The kart runs zip brakes which i am told are one stop ??? ( known as neverstop ?)
The kart is in bits and the brakes will need a full set of seals but all parts to build it back to its former glory are here to include original side pods and rear downforce wing (with rotax lettering still on it)
I would be greatfull if one of the members could give me a bit of guidence on price that it should be set at on e-bay as i just dont know.
Many thanks in advance
Terry
07825 173619