I'm not really sold on the Stompy approach. I think the main reason to play green stax is because Garruk kicks ass, and he makes it possible to add Winter Orb to the mana denial aspect of the deck.
That said, you really need to be running Crucible of Worlds and Mox Diamond instead of Chrome Mox. I don't think there's space in the Stax shell to include a bunch of equipment cards either... Snakeform and Briarhorn are both terrible. I think Imperious Perfect is potentially really good, but I'm not sold on Spawnwrithe. Unless you manage to play it on the first turn, which is really unlikely, they're probably going to have either a blocker or a removal spell. The thing is, it has to go unblocked to work, and it's just a 2/2, so it's not that hard to block.
Basically, not to knock you too hard, but I think your build doesn't really run enough Stax cards to provide a strong lock. The creatures you're using have good abilities, but they're really easy to kill. And you're not really running enough creatures to make all that equipment necessary. Also, I consider Tangle Wire to be a subpar Stax element. I've noticed that most lists don't run it, I don't see any reason that we should.
If you really want to build a green Stompy-Stax, I'd try to find a way to make Kodama of the North Tree work. Three green mana is a lot, but that thing is a house... although, an un-equippable house.

