Have you considered getting continueous woodplates for the back, Jim? They really look awesome -especially on highly-figured woods like Coco Bolo and Quilted Maple.
One other thing you might consider: they've got a REALLY bitchin' amber tint I've seen 'em do with Maple basses... you might ask 'em about it, I think there are probably an example or two floating around on the site. Maybe they could show you/refer you to a picture.
I think I'd have to get the amber tint if I were getting a Quilted Maple Alembic... but that's me!
Oh yeah, one other thing. I recommend you consider kicking out a few extra bucks for 3-position Q switches... they'll add a lot of flexibility.
Look forward to seeing your Balance K get built, Jim. It's looking like they'll be working on ours about the same time, so we'll see 'em built together!