@liquidcow Well, the whole hook is that you define how they get made, from cab size to driver choice, so it's pretty much a price-on-application gig. Hell, apparently they invite you to the damned factory to try the things out; it's that kind of small-scale craftsman operation. Why not drop 'em a line and ask for a quote for the sound you're after? A quote don't cost nothin'.
I'm not shilling here, BTW. I've just heard (and lifted) a cab they made, and I tell you, if I had the money...
A quick necrothread thanks for the tip re: ART Tube MP. Just got mine (the Studio version) and hooboy. May well be the best 60 euros I've spent on music equipment.