Nitrous plumbing A1A...??..

Thank you for that. So far I've got a few members that have used it chime in with some different ideas and like you said everybody runs it kind of differently.
Right now I'm looking for any major flaws in my plan?... And like others have done words of wisdom from their experience...

The only major flaw in your plan so far is that you are building a fuel system capable of running at the maximum level of your nitrous solenoid. Once you have fun and get used to that lower level you are planning, and see how easy it was, you will wonder what more feels like.
“Heck, the fuel system is ready. More octane, a little more timing retard, it will be fine.”
Everyone does it. Good luck with your self control. Of course, my car was a dog to begin with so I was way on the safe side with much less fail safe measures.
Looking forward to your first impressions review. I predict a huge smile or grin. The one that comes right before “hey, watch this.”