I'd say the Somethin' Extra is above you at this point. Why go from a trainer that's trashed, to trashing a new plane?

Being 5 years old, I'd guess that the Mark II has an older Thunder Tiger 40 in it, but you should be able to see make and model on the engine. On one side of the cylinder it should say, "TT", or "OS", or something. On the other side it should say, "40", or "46".
Dennis-