on the 8th gym now, forgot how little there is to do in this version :S got a tough squad though.
lv36 Pidgeot
lv34 Flareon
lv34 Ampharos
lv32 Machoke
lv32 Feraligatr
lv32 Scyther
Yeah, as Billy said, you might struggle.
If your Feraligatr knows Ice Fang then it's super effective against the Dragon Pokemon. If not, then you can always purchase Blizzard back in Goldenrod.
Im going to get Growlithe to level 45 then try and get a fire stone so it evolves