Looks great so far as you will certainly enjoy it down the road. I wish
in my layout there was more room for my pins! Only room for 11. Right now I'm updating my theater
to a projection system from a 65" plasma. Its about a 12X19 dedicated room
as well with no outside light interference. Two row seating with six electric recliners.
One thing I didn't do was do better soundproofing in the walls and ceiling.
Unfortunately in the theater I used a laminate hardwood being in the basement and
wanted something different since have carpet in remainder. I don't know how high
your finished ceiling will be but remember if you are planning stepping up your chairs
in rear row. With mine I'm worried how low the projector will hang and will sit just above
second row. Would like to do a 100" screen.
Good Luck but just get that water seepage under control. I'm doing this water powered
backup sump pump system for mine. I was told this was the way to go these days.

Yes those poles are a pain to work around. The width of my theater room was hindered by two poles but I just enclosed them
in the wall. My riser was built with 2x6 and I added another 2x4 on bottom to just get another knotch in height over the front row.
I then just installed black carpet over the riser platform. I think it will be ok with projector mount but like you said it shouldn't interfere.
I have a professionally installed 2x2 drop ceiling in my basement which was the only thing I contracted out besides the carpet. Wish
I did drywall but on a few occasions needed to get up in ceiling for access. I thought about changing ceiling in theater to dry wall
but of course I have laundry and powder room above. Will probably paint ceiling matte black to fit into theater experience more.
Right now I been researching this whole projector thing with some guidance from Best Buy. With my budget I was looking at
an Epson 3D 1080p vs a comparable Sony. My neighbor has a 3D Epson and it looked great in 1080P.

Thanks I appreciate that and will certainly look into this.

Great to see the progress you are doing. Things are looking really good!
I can't wait to see the wood treatment you have coming.