Hey, I'm in exactly the same position!! Flew my LT-40 for the first time this week and here in Montreal in a few weeks time won't be able to fly again until April once the snow comes! So i just bought a SIG Kavalier kit to build through winter. Picked it up on sale for $89CDN. I know its an old design and all but from all i have read it looks a great flyer and offers some "old school" building experience too. At the moment my goal is to get into scale and with this kit i am planning to do some cosmetic mods based on the looks of an RAF Tucano T1. I'd suggest getting anything you can use your existing engine in, the usual suggestion of a 4* 40 or Tiger 2 will probably fit the bill.