1. Megahouse have already stated this is volume 1, suggesting there might be a volume 2 that switches out Zoro, Sanji and Usopp for Robin, Brook and Franky.
2. As said, these are blind boxes. This means they’re random so you are not guaranteed to get the character or colour you want. I’ll be buying one box of 9 pieces and getting the rest from eBay or trades.
3. I don’t know about anyone else, but I’m only making up a set for one side/colour. If there’s a volume 2 in the future I want to ensure I have volume 1 as my white set and volume 2 as black.