Nitrous plumbing A1A...??..

Doing more research last night and getting more and more questions and less and less answers LOL.. so I look at those Speedmaster cheater plates and all their fittings and of course they come with massive jets that I don't need.. so then I start looking at jet sizes and finding out that certain manufacturers have certain jets for their application. I was looking at the lesser expensive zex solenoids. But then those Speedmaster cheater plates look like they may be from nos..??? Then I wonder how all that crosses over? Also a lot of the jet sizes depend on bottle pressure and fuel pressure...
I'm starting to think the only way to do this the easy way is to buy a complete kit from one manufacturer...