Honesty is a thing that seems to be in short supply, especially when selling/buying from a site such as E Bay, Very few Non Heli people would be daft enough to make a bid worth more than the scrap value of some sort of craft such as this if the history was in doubt!
But as with all purchases of second hand things the words " Caveat Emptor" (buyer beware) should ring loud and long in your ears before making a bid or parting with cash!
PeterR-B
Vfr