I think we should put a limit on the numbers of each pony type. If we were to have 6 ponies, most would be Pegusus ponies. We might get one or two unicorns, and no one would want to be an Earth pony. We should put a limit on each type so that doesn't happen.
If we used existing characters, I'd be all over Fluttershy. I'd just have to make all my dialogue in a really small font. But yeah, I think we should make new characters. That's the beauty of VCR. You can make your own character templates and people can create characters right there.
I don't know. We could probably just finds few people from Nayru to join. I'm not sure what the premise would be. We could go on many short adventures an learn lots about friendship, or go on some giant pony adventure.