I decided to take the plunge and get the new 312. I'm planning on swapping all of the carbon bodywork that is on my 2000 750 and put it on the 312. I also prefer the look of my magnesium Marchesini's and will swap those. My question for everyone is what do you think a fair price would be for my 2000 F4 750 (with brand new bodywork from the 312) new Brembo wheels and tires, RG3 exhaust. 9600 miles, all services as well as the brake upgrade done.