in uk with blue dog currently and first of all i'd say don't worry - it's easily doable with 5 people with darnnear anything, and dragonite resists pretty much every hidden power it can have so they are decent options always.
the game itself always puts my 2300ish cp venusaur with vw/solar top then my 2500cp confusion/solar exeggutor, after that game usually throws stuff like espeon in as it 'knows' what moves it's facing and prioritises resistances so i'd go with it's suggestions.
as for what moves on an eggy, i'd go psychic quick (think they can only get extrasensory now) and solar charge - seed bomb is a nightmare for attackers if you'll use this on defence after event too.