KennyC
If I had the guts to attempt it, my number one choice would be the Linkwitz LX521, and this looks to be a complete kit with the wood flat pack for $5,350 https://linkwitz.store/product/lx521-kit/
The completed speakers are $16,500, so if the kit is complete it's a huge savings. I may give them a go sometime next year
GR-Research's NX-Otica are open baffle and look really interesting as well for $,3850 with the upgraded caps and foil inductors. I'd love to hear the NX-Treme, but I am not buying 7' tall speakers