Now you're thinkin' like a builder!
Shoot, knowing how to fly is by no means a requirement for building. I had my Tiger2 finished and flight-worthy 6 months before I solo'd. (Of course there was a non-flying winter in there...) I think anybody who enjoys flying but has never built a kit or from plans is missing out on half (or more...) of the fun of this hobby. Besides, when that nephew of yours catches on to where that plane hanging in his room came from, you're gonna have yourself a building buddy!