[Stu]

£120 is not too far out of town for the rolling chassis, if it's in good condition. Assume you also got servos, radio, starter box, blah, blah with it - as it was 'ready-to-run'.

Buying any used engine is always a gamble. You really need to expect the engine to be used & worn and factor this into your total budget. If it proves to have some life left in it then you need to think of it as a bonus.

The engine in an 8th is just the same as the motor in an 10th electric, it's a consumable item that has a limited life.

I'm not trying to suggest the thing was not misrepresented in the ad, but when something seems too good to be true, it often is.

Don't think of yourself as being badly ripped off, just unlucky that it turned out not be be the bargain that it first seemed.