Your Kougar would make a good 3rd plane(second if youve taken your time with a trainer) with a.40 or .46 on it.It was designed for .40 to .50 size engines.My friend had one for his second or third plane and it was great(as are most Sig planes)They are faster than any trainer,but very manageable.The Kobra was the .35 size version of the same plane.Anyway,good luck and nice find on all the stuff.