I don't think w8ye was offering to sell them (I could be wrong of course)... an ASP/Magnum .90 4 stroke would drive that plane around nicely and there's plenty of them brand new and dirt cheap on ebay. You could even go with an ASP/Magnum 1.20 - I have the ASP one in my Super Skybolt and it provides excellent service. Probably not as powerful as the same size in a more costly brand, but at 1/3 the price who's complaining?