Leckert - it should be ok re: the rise. And I would go a medium - DD2 is in medium GF's and she's about 7kg now (approximately) but quite long. As for side snaps, thats all we use here - so I always say go with them.
Fuzzywuzzy - woohoo! (and btw, fuzzy wuzzy was a bear, fuzzy wuzzy had no hair... )

