Okay, I'm pretty much done with my set up so here are the final pics.
This screen is up and it looks fantastic.
I have my HDMI cable to my projector and rear speaker wires routed through the ceiling. On their way from the receiver to the access in the wall before going up they were visible along the baseboard for about 2' so I made this little sleeve to keep things tidy.
Projector:
Projector & rear speakers:
And again:
And finally: