The garage I'm thinking of moving to is about 23x15x9 feet in depth, width, and height respectively, which if I use the telephote of the lens, I have to set the projector's lens from about 20 feet from the screen. The good news however is that if I want to forgo the lens and set the projector back to about 21.5 feet away, I could achieve a 160 inch 16:9 screen (with some keystoning) and still have a really big picture for "scope" movies (about 150 inches), which would be great for dark theater parties. I can even design the ceiling mount to accomodate both methods for cinemascope movies and set the projector at 19 feet and watching big screen 16:9 movies and games at 21.5 feet away.
When I was using my anamorphic lens set up, which I explained how I used it, I was actually using the closest zoom on my projector, although the throw is about 1.85x from the screen, which I was limited by that because my room was about 18x12x9 feet in depth, width and height respectively, and the projector was about 16.5 feet away from the screen, and the projector was about 18 inches in depth (Ventilation was on the sides of the projector, making instalation easier on a bigger screen). The chroma abbrieviation (I didn't mean an artifact, that was an accident) was never that bad enough at the throw, but If I use the telephoto of the lens, which is around a 2.2x throw, I could get better contrast as well as much less chroma abbrieviation.
What I did was made a custom ceiling mount that I used a street sign that hangs on the projector and I made a board installed on the ceiling for which I could hang it up and I could remove the projector with ease and not needing to permanently install the projector in, I don't need to unbolt the projector off the ceiling and I could say make an outdoor movie much easier. I also set my Draper manual pull-down screen which basically uses up the whole wall for my previous room, the room is about 12 foot and 4 inches in depth and I made the room for "scope" movies a full wall.
Fair enough. I'm also interested to hear more about how you have gone about your set-up. Remember the longer the throw the dimmer the image but the better the contrast. I also didn't think chroma artifacts where an issue with blu ray. I can't remember noticing any on a blu.
For personal reasons of privacy, I am not going to be posting pictures of my home theater, unless if I have a change of heart. Also pretty soon, I'l be moving my theater into a different room (I'm thinking of a garage), while I am excited about the larger room (longer throws make less chroma artifacts). I will say I did a few methods differently if you are interested for a read. I actually had the anamorphic lens set up as a temporary set up which uses wires hanging on a board, which I could lets say I want to have an outdoor movie and I could take the prisms and use them for an outdoor movie, although my original intention was to make a case for the prism (which I may end up doing when I change rooms).