Unironically would love to have it as a full collection. Not that accessing One Piece is too hard currently, but access can always change, and I wouldn't want to end up like Pokemon fans with the entire series split across the internet.
They probably did, but you pretty much need to pay the guys behind the Guiness book for them to give you the record (there's a form where you can apply for certain records for free, but it's commonly disregarded by the Guiness guys afaik)