Hey! I missed this post until now!
I haven't had the guts to use that much raw wheat in a recipe yet, and as you said, there's not a whole lot out there. I play hockey with a bunch of farmers who are more than willing to trade grain for beer, and support my obsession.
Malting wheat's not hard, either, if you wanted to try it. The wheat farmers were skeptical of wheat beer at first, but my 3 parts wheat malt, 1 part 2-row, hopped to 12 IBU weizen has converted them (and is about as easy as recipes get!)
Thanks for posting your recipe!