RE: build from plans
There are quite a few planes that meet your specs.
Are you interested in a sport or a scale model ?
Do you want a high wing, low wing, etc ?
Do you want a fast plane, an aerobatic plane or one one to just cruise around with ?
What tools do you have ? Do you have any power tools - scroll saw,band saw, etc. ?
If you can narrow it down a bit it would help. 95% of my planes are plan built. Here are a couple of photos. These are all powered by 46 2 strokes.