I was looking at some clones for Lagunitas A Little Sumpin' Sumpin' and also Three Floyds Gumballhead. The latter looks closest to what I was thinking.
They're using some 2 Row, White Wheat, and Belgian Cara-20 with 5lbs Wheat DME. One person couldn't get the DME so they used 6lbs LME instead, so it could work for what I have in stock. They're also using Amarillo hops instead of Cascade or Simcoe.
Think I'll pickup the 2 Row, and 3-4 oz of Amarillo, and might stick with the Crystal 20 instead of the Belgian (don't want it overly sweet). I'll use the Tettnang and Hersbrucker @ 60/45, and then use the Amarillo for the rest of the schedule .50 oz @ 30, 15, 10, 0, DH.
I'm starting to think I might need to use a different yeast though. Not sure the WLP300 is right for this beer. Might go with the Safale-05 they're using for the GBH.