A quick visit over to the recipe forum provides an easy answer to the low-carb crust problem:

http://forum.lowcarber.org/showthread.php?t=44087

I've tried it and it's really good. Having said that, I'd not hesitate to order pizza with a reduced-carb bread crust for delivery, but if you need almost no-carb crust it's really good, and you can pick it up and eat it like normal pizza. It's not hard to make so an enterprising pizza joint could make it without too much trouble. It would probably cost more.