depends on the thickness of the walls I'm working with but generally I just find the easiest way to make it work.
I've seen your skin somewhere...
The real reason I like to make a mess with my stuff is simply that I want my stuff to look like an actual machine room from a factory (I've been to those and it is just gravy for an FTB room designer - my uncle works at Volkswagen).
I hide my tesseracts though.
Well I'd hope so. Exposing those in public will get you fined.