I might just bite the bullet and try my hand at building the BFD 2-10" cab. I just don't like the crazy amount of tweeters that they have and I want it to match the W/L demensions on my cab. I should just talk to Bill. Gotta get that money first.
FYI, you can build the cab in different widths, and you can leave the tweeters off entirely if you like. If you look at the picture slideshow banner on Bill's forum, there's one guy who built the half-size versions of the Omni 10 (Omni 10.5, single 10" cabs), and built two sets in different widths, with and without tweeters:
http://www.frappr.com/fitzmaurice/photos/4762612
I have the plans for the Omni 10 myself, and want to give it a try. I'll leave off the tweeters for my own use.
Good luck,
Liam