I'm thinking about buying an 02 cr250 basket case. The bike is assembled as a roller and the engine is in a box with the cylinder removed. The top and bottom end of the engine are toast but the guy has everything for it, it just needs a full rebuild. On top of that the bike has been sitting apart for about 7 years. so the bearings in the motor are rusted. After crunching the numbers and being pretty optimistic with parts the bill to rebuild it will be a minimum of 1000 dollars. What do you guys think this bike is worth? I'm thinking 500-600, is this a realistic number?