DC Creations is my go to. I've heard Dustin can be a little slow but I've never personally experienced it. And his prices seem like they're half of what Dave charges. I've seen other people with his boxes. I'm always surprised when I find out how much they paid! There's too many good enclosure guys on here like Dustin, Buck, dbeez, etc. that'll do it just as well, faster and cheaper than to screw around for 4 MONTHS! That's ridiculous!
By the way there is a section this should go in. Not sure if general discussion is a good spot for this. Maybe here:
Miscellaneous Car Audio Reviews