However, since Brad Smith died, we're working on alternate suppliers and so flat pack kits probably won't be available again until spring or early summer.

I've been working with another shop, and they've built some three π subs for me. They did a great job, and I was really impressed. I'm going to try them on some other cabinets next. Some take special jigs that Brad made, and I expect the new shop willl want to do something similar. Once I think they're comfortable with all my loudspeakers, I'll start taking orders for finished boxes and midhorn flatpack kits again.