thank you guys, appreciate the comments.
Picked up the first run of pieces this afternoon. The inlaid grill mods didn't make the first cutting, we'll cut the rabbets tomorrow and add roundovers to the ones we need to.
Here's a few pics of one of John's triples:
Base with dowels, there are also a coule of screws that go through the base into the side panel (pre-drilled , dowels and screws will of course be supplied)

Drop the side panels over the dowels

Slide the baffle in (front / rear roundovers to come)

top with dowels ready to cap the frame

Slip braces into position

Wiring holes in braces and baffle


Pre-drilled screw holes

Like I said, rabbets will be added, grill frames were cut (most of them), I'll also add a rdius to the rear of each driver hole just because it can't hurt

For anyone wanting the easiest, least amount of work, I do recommend you go with the over haninging tops/bases. No matter how precise the cuts, if you go with the fluosh pieces, you will have a seam to deal with and that means some minor filling and sanding after gluing and clamping
With the 1" baffles and braces, thiese things are "beefy" !!
jay