RE: Looking for a **VERY GOOD** pattern plane for 91 4-stroke?
Not trying to be a smart-derrier but I'd get rid of the Magnum and find a good used YS-110S. I'm not a big fan of Magnum engines and am not sure there's a good airframe out there that large enough to be a good trainer AND be small enough to be able to work with that motor.
PS - I have a Venus II and am selling the OS 120 I had in it to buy a YS 110. Nothing wrong with the OS, I just love YS engines! The Venus II is a great flying airplane for what you want.