On getting your current guy to work. Consider some of the following.Your totemic trans can give you a bite or a swin speed and water breathing at 2nd lvl. I would consider two handing a weapon maybe a staff and use the bite as a secondary.
When your wild shape comes online, look at a Druids robe, and the sky swim spell. As always you want natural spell feat (must have).
If you really want to avoid summons focus on melee. One buf and into the fight, probably bull str until you get a belt. Barks kin and the new iron skin may be good too. Don't buff too long or the fight will be done before you get there.
Druids don't have too many low level mass buffs, but review your list thoroughly. At higher levels it can be good to leave a slot blank to fill in with something you find you need later.
At higher level look at life bubble spell nice to have.
With the small group 3 of you, summoning May work out. If so look into spell focus conj and augment summon with superior summons, and maybe one of the nature summoning specials like moonlight or sunlight summons.
Do best to keep str high, and anything else to keep your attack up. I found problems toward the end.
Druid should be fine. I played a menhir savant thru S&S and had fun.
Any specific concerns?
Thanks. That's going to help. After talking to the players, they won't be upset if I start throwing summons around, so I'll definitely pick up augment summons. Otherwise, I'm looking for anything that will make wild shape (even with the -2 level progression) useful. I've been thinking of focusing on biting and taking forms which have a bite as the primary, such as a hippo, wolf, dino, etc.
Planned feats are:
3 - Spell focus: Conjuration
5 - Natural Spell
7 - Augment Summoning
9 - Improved Natural Attack (Bite)
11 - Powerful Shape
13 - Superior Summons