Just so you all know... After very limited bodging, I was able to get the #FoxSCSI board (by @DosFox naturally) recognized by the Delta (#apple2 clone) and booting from it using a #BlueSCSI!
The prototype board by @DosFox (almost) built and bodged. It still lacks the LM317 for active termination and it's using an 74S133 in place of an LS (because I was out of those).