Wait. You found a bug in their system and decided to exploit it then brag about it? Stay classy.
I should clarify that my posting into this thread really wasn't about trying to earn the OP's business. The DIY spirit will never be broken by practicalities or consideration of R&D time. I'm all for trying something new. That being said, I've screwed around parts like this for so long and have tested plenty of versions and I stand behind what I sell as a working configuration. That assurance yields a slightly higher price than the sum of the parts and I'm fine with people seeking out cheaper alternatives.
The tricky thing is that all of these Chinese manufactured parts have variable tolerances that make it nearly impossible to pull from different sources and have the end assembly be consistent. For example, you see that Proflow ended up with a lot of NPT threaded locknuts by mistake. It's happened to me too (they went to the scrapyard) and I got a credit for the difference.
I'll end with a PSA. Bulkheads that put the gasket behind a loose SS washer are pure garbage. Don't make them. Don't buy them. I'm convinced that half the places selling these things have never installed and leak tested.