Welcome aboard vicrider....
Well, I'm thinking about sticking with my original thought of a 260 watt motor for now.. Most of the motors I can find in that are rated 320 watts and above also weigh more than I'd like. Since the 260 watt motor is a 35-30 size, it will be easy to swap out for a slightly more powerfull (but longer and heavier) one if I need to.
The weather is great here in Michigan for a change... So, still no building yet. Just flying! (and work and fixing things around the house and fixing my son's car and yard work..........)