I've got these items in my cart, how are you thinking of reconfiguring things if you don't mind me asking? I hope you can get that gauge out, no good!
I want the disconnect on the side of the T-piece, gauge at the top and valve at the bottom. That arrangement should fit more neatly on the top of my kegmenter.
I also did an overnight pressure test. The Blowtie was set to 35psi (planning on naturally carbonating a Saison at room temperature) and the entire thing hooked up to a kegmenter at 10psi. 8 hours later the pressure was at 0psi. I need to do some more tests to see what is leaking. Everything is brand new, so everything is suspect. ;-)