Don't think you will have any problems flying/landing it. It was my first glow plane after flying almost exclusively sailplanes.

I had an OS46FX in mine and that was plenty of power - don't imagine you'd have any problems with your engine.

As for the flap, just be ready for some nose pitch-up if you have any speed on her. I found the best way to land was with about 30 degrees of flap, level and using throttle to control the descent.

Unfortunately, I lost my Contender just a few months ago. Got into the sun and thought it was baked away from me--actually it was banked toward and when I corrected, I ended up inverted =-)

Hope this helps
- Allan