I would suggest you take out the cabinet that is to the right of the stove and use it elsewhere in the house -- perhaps in the bathroom or dining room with a hutch above it. Then, I would suggest you have someone install a lazy susan cabinet in the corner between the sink counter and the stove, meaning you would move the stove down a bit and have a small cabinet/counter top to the right of the stove. I would suggest you have the cabinets refinished in white and then paint the walls a pastel you like. If you would prefer white walls, then add white-painted crown molding and paint the ceiling a light neutral blue, such as Sherwin Williams Niagara Falls Blue. Then, I would suggest you choose a favorite accent color and use this sparingly in accessories like towels, pot holders, small vases or floral arrangements, and a valence above the triple windows. For a genuine 1940s look, you might have white ceramic square tiles with a rectangular red border installed as a back splash behind and above the stove. If you are replacing counter tops, I would suggest a light color such as white with a beige or light grey vein or striation for some sort of pattern. You might be able to find the same color and design in floor tile OR opt for a wood floor as another poster suggested.

Well the piece above the fireplace really overwhelms the space, and most specifically the fireplace. Is there another wall space anywhere that can showcase it? trying to use this piece in such a small area makes everything else lose its appeal, it has to fight to be seen. For sure move the sofa where it faces the fireplace, or set at an angle facing where you hv the TV set to be mounted. If you can, leave the chair in the same area, use the table the TV is sitting on as a coffee table for both. The way that makes the space work is the way you need it.

Don't use the wall faucet variety, UNLESS you want to purchase a new top for the vanity. Or return the vanity. Pretty simple. The round hole was meant to have a faucet. Not a "cover" which may also allow water down under, which may also ruin the vanity as there will be no containing water lines beneath the little hole. Bad idea,

No your roof can't support that weight, it's designed to hold the weight of shingles only. You will need to contact a structural engineer to come up with a plan to support the additional load.