no, no and NO
Dont touch it, if he does not know, then it is not what you think it is.
If you are super lucky, give it a shot. but you can build a pretty sweet motor for 2500 bucks. NEW!!
you could even build a nice 2110 for that money. new case, crank, rods, pistons, heads and all the rest. (carbs will prob throw you over that mark)
GMB could prob hook you up with motor and build i would ask him nice like and see what happens.