Wow, good stuff!
A few suggestions:
1) Don't rely / wait on me for anything (decisions, permission, etc.) I'll help where I can, but from what I've seen so far you're on the right track.
2) Keep things really simple the first go around. It is better to have it be really simple and have a TON of submissions then to have a ton of rules / threads with few submissions. If this works out (and I think it will) we can then go more specific.
3) If / when there are grand masters (best of show type winners) then BYC will probably provide the winners with goodies from the store (bumper stickers, shirts, etc.) and/or exclusive surprise goodies not in the store.