Looks like you're making great progress assembling the rack. I would love to be able to offer some of the advice you're seeking on the 700's conversion into a proper Vigilante. But that unfortunately predates anything I was ever involved with, processing-wise.
I'm actually a bit curious why there aren't more engineers chiming into this thread who were around during this vintage equipment's heyday. It makes me wonder if the majority of those guys are all retired now and no longer keeping up with forums like this. Back when I signed up to this forum in the 00s, the place was jumping with them! Hopefully there are still some true old schoolers lurking out there who'll finally notice your project and offer up the wisdom you're looking for. This could be such an awesome project with the right community input.
Incidentally, I'm listening to your 40 minute except as I write this, and it sounds quite pleasant, even with only the Prisms and BBE at work. It's no surprise so many stations loved those Prisms. I wouldn't have minded having them as my
only processors for a small town station. Kudos on your playlist, too. Your selections are perfect for this equipment's era, remix selections and all.
Oh, and the cabinet looks swell. I especially love the top half. Everything visually matches perfectly, almost like those pieces of gear were born to be situated together in that section.
Good luck with your continuing build. I'll be monitoring and looking forward to more "airchecks." I can't wait to hear some A/B comparisons once you have your 222A in place.