The best advice I can offer in this situation (if you plan to buy the whole bike) is to sit down and make a list of every part you think you want to sell. Try to look at everything and make sure you dont write down something you will need. Once you have your list, start looking the parts up online, ebay would be easiest. Look them up in order of what you think is most valueable. After you get most of the items priced, you can start to add up the total value of what youre going to sell. If the total is $300 or more than you would obviously want to buy the whole bike. I would think that you could prolly get $300 in parts. It all depends on if someone needs parts. Once we are a little further into the season more people will need parts cuz they will wreck and or damage their bike. I dont think it would hurt to have the extra parts anywy since you are putting the new motor in. You need to make sure the motor turns over. As long as everything is still connected it may even be able to be started.