I've thought about moving my video projector/lens combo into the room (my office) at the rear of my home theatre... but I think it would create more problems than it solves.
I used to have a 16mm projector setup some time ago, aiming through a "window" in the wall. I made a frame to hold some 3mm plate glass with some grooves in the frame to hold some black card when I wanted to block it off.
This is the only picture I have of the 16mm projector in place, it's a bit small... but you will get the idea.
You can see the "window" from the HT side in these photos :-
The hole in the wall WAS originally designed for a film projector back in the day when my parents owned the house and my HT was my fathers photographic studio. I can remember family film and slide nights being just like the local cinema... but with 8mm and 16mm home movies! Dad loved shooting medium format 120 slides on his Mamiya RB67 camera... but I digress...
Back in 1997 when I bought my VPL-W400Q projector, I tried placing it where the 16mm projector sat. The VPL-W400Q couldn't zoom small enough for my 110" home made screen for the throw distance of 24'/7400mm and didn't have any lens shift function.
I doubt if my current projector (Sony VPL-VW60) could zoom down enough either. Placing a projector in the room at the back would increase the throw by 3000mm over where it is now.
The lens shift function of the VPL-VW60 is not ideal either.
At the moment, my projector lens is around 200mm above the height of the top of the screen and there is a noticeable bowing on the bottom of the image caused by the lens shift.
If I was able to move the VPL-VW60 to the old 16mm projector position, it would place the lens around 200mm below the height of the top of the screen. I think the geometric distortion caused by the lens shift PLUS the decrease in picture brightness outweighs any benefit. Plus I would have to light proof the office to prevent day and artificial light from spilling through the projector port.
I don't mind having the projector where it is at the moment, it's fairly quiet and it's in an airconditioned room. The steel truss I mounted the projector on has proven to be a sturdy mounting location for both the projector and anamorphic lens.
I do dream of putting a DCI projector in the back room one day... maybe when I collect an inheritance from a long lost relative...
I'd also like to remove the walls of the office and incorporate the space into the HT proper. The office floor is some 320mm higher than the HT floor so I would have a purpose built riser PLUS then the room would almost be a golden rectangle 1:1.618.
P.S. the prism lens will soon be replaced with an Aussiemorphic MkIV lens so I am sort of on topic for this thread... plus others were talking about projection booths...