Ok started work by quickly making a TOS Tholian ship, played with some materials that are not working. (MR car paint is a bit to large to just fool with atm) But the purpose is to compare them to the Bombay. 15 30 and 50m. 15 being the ones from TOS. Now in order to do what was done in the books I think something far larger than 15m is required. Be it 30 or 50m. 50m I think is the more workable size right now.