Hey TP...welcome to the OldMiniBikes.
It's against forum rules to attempt to give values.
A good way to determine what you'd be comfortable with, is to look through the classifieds here, and elsewhere, and find comparable bikes, and see what their asking prices are.
Remember, your buddy is 'asking' a certain amount....he may take much less...if you ask....:thumbsup:
Good luck, and again, welcome to the OldMiniBikes, to a fellow Carolinian.