I had an amusing idea. If I could somehow cram an extra level there somewhere (and get by with one less feat), I could take something with Powerful Build and go to town as Gargantuan for most intents and purposes. Too bad I can't have both, Warshaper 3 and FoF 1; that extra Reach would be sweet. Many Huges have a lame reach of 10', and even the best only have 15'. Oh well; if this were a 16th level Arena, things would be totally different (I could have Barbarian 1, Warshaper 3, +1 LA and still maintain all the cool stuff), but bleh. As it stands, I'm crammed for space.
I suppose I'll ask about the swarms (and suggest "No" for an answer). And yea, Reg will do, if only it were available in the best combat forms. Well, I guess I'll just have to be doing a lot of in-combat shifting. Hmm, some item that would make it into a Swift Action? I recall such exists. Although I wager I'll be running low on those as well. I'm almost done, just pending some answers from DM on how much I can do. Then I'll just need to decide which Favored Enemies I choose. Humanoid (Human) seems like the good first option, but the second is harder.