I'd just do an L150 or S4600 type box.
I'm waiting for someone with 240Ti's to start a thread about how they replaced the 104H and 044Ti with a waveguide and 2452H-SL.
After that maybe a pair of 250Ti's...
We can fix all these old loudspeakers now!
No more 066's? Not a problem. Demo saw those 4313 baffles for the 12 x 12 waveguide and call it done! This is pretty exciting stuff.