Looking for master cylinder suggestions on somewhat unique setup

Yeah, I'm definitely not discounting the idea of the kits. They are nice combos for sure and have proven to work well for people. I'm just not sure i can make the left exit porting work for me without redoing a lot of other stuff. I figure I don't mind redoing more of my brake system and leaving my clutch alone as the brakes are kind of kludged together already with unknown parts, so refreshing the whole master cylinder and valve setup would at least give me a baseline to deal with, and I figure if I'm going that far I might as well get what works best for me.

I'm leaning the most toward the Wilwood bottom exit setup and a custom adapter plate to be able to mount it right now. That gives me pretty ideal porting that would be out of the way of just about anything I have up there and also points the lines where they end up going stock anyway (down to the frame rail where the proportioning/splitter valve was originally mounted). My headers are pretty tight to the frame where the original valve went though, but I think if I just put a tee there for the front brakes and mount a new adjustable proportioning valve for the rears up higher inline that it would be a pretty clean setup and have good clearance to stuff. The Wilwood master comes with a threaded pushrod as well, so all I should have to come up with is a rod end that will mount to the pedal, which I'm hoping could be fairly straightforward. I just wish I understood why they went with a different bolt pattern on the master as pretty much everything else they sell is horizontal.