Whats it worth

Hello Guys,

I'm going to put my shell up for sale next week, Its in really good nick no rust what so ever.1991 Cabriolet has new windscreen and seal fitted, All side glass, Flushed engine bay.Any idea what i should be looking at getting for it.I have the roof for it as well its badly ripped but the frame and rear window are still in ok condition, Would i be better off selling it separately from the shell?