Anyone have hidden brake brake booster

[71step35035012C10S]

I’ve started tearing apart my engine bay for a major clean up. I’m planning on eliminating all unnecessary wiring, hoses, etc. I really want to get rid of the brake boost/ master cylinder during this. If anyone has pics of a 67-72 with an under dash or frame mount I’d love to see it, plus parts used or things to consider. Thank you

Progress so far, almost ready to pull the engine.

[LS short box]

I haven't used one but street guys have used them for years. They sit sideways under the dash. I think they offer manual and power. Just be careful of the small diameter booster because they don't supply a lot of assist.
Suppliers always had adds in Street Rodder magazine.