Electrical was just done yesterday. 6 cans in the ceiling and wiring for a drop light by the window (future use like poker table).

I used some tape to figure out my screen size...since Im putting the Screen on the side wall I only have about 10 Feet for the view distance. This means Im going with just an 88" screen. No big deal thats still pretty cool.
Im using the side wall because I can build everything into the frame. The Subs (twin 15" TC2000s) and the main speakers are all going to be flush with the wall itself. I will build frames to hold them all. This gives me more space in the room. The same is true for the equipment racking, it will be built into the frame.
Several things to note...
HVAC - I have a mini-split unit going in also its a separate HVAC system from the rest of the house.
SCREEN - DIY Laminate Designer White, D354-60 (4'x8') from Lowes or HD...Going to order it today.
Seating - 4 Berkline leather chairs (black) I forget the model #s.
Projector - Panny AU900
Walls - linacoustic 1" fibre glass duct liner and then I will find some nice fabric to cover it. This seems to be a popular and cheap way to have sound absorption. I will probably to two colors with a chair rail to hide seems.
Columns - maybe just beside the screen on each side something like

Im not going to do Green glue and double drywall because it adds over $1000 to the project and I just dont see the benefit at this time.
Questions
1. Do I need bass traps? even if Im using linacoustic? I so, I would love to build maybe 2 into the frames on the back wall (behind the linacoustic). For Bass traps do I just put in "heavier/denser" matrial in between the frames? Is two enough?
2. Door to attic and furnance pretty close and it might be loud when on. How do I sound proof a door or just the wall. I guess I might need to use Green glue and double dry wall if I want to keep sounds out of the room

Is there a way to sound proof a door though?
3. Is there anywhere online that I can by pre-finished crown molding and chair rail moldings? maybe Dark Cherry or Mahogony finishes. Im not great with staining things!!!