Yeah, I'm personally in love with the Archtype. But at the moment it's missing some key pieces to make it more consistent/less likely to be disrupted. My deck runs a few more spells, and using snappy to bring back a postmortem lunge into a kessig cagebreaker can be a great finisher (especially when pulled out of nowhere as a last attempt to win). My biggest problem is having a non-graveyard finisher. Have you considered Mulch? It's amazing in any GY deck running green.
Permalink
I've been working on a similar deck. It's a bit less budget than what you have, but check it out. http://www.mtgvault.com/ViewDeck.aspx? DeckID=260914 Also Noxious Revival + Merfolk Looter = the very poor mans snapcaster. It's more mana intensive, but it gets the job done when you need something in a pinch.