You might try calling Mohawk directly and asking some of your questions. They most likely won't give you answers to all of them. Look at the website for their retailers and you should be able to find one that has the wall of colors. I took sample boards from Home Depot which listed the weights and twists,etc. and compared them to other stores that did not have the information listed. The retailers can get all that info for you by calling Mohawk. Mohawk would not give it to me when I called. I chose Roaming Spirit which also goes by the name Windwalker. They do make it difficult by allowing different stores to give the styles and the colors different names and of course different prices. Mohawk will also send you samples of styles and colors so that you can carry them from store to store. I have had 2 rooms installed already and the rest of the house will be done on Monday. So far, I love it! It is incredibly soft.

I'd still be concerned about your mother and a walker in the bathroom. How much room is there between the shower and the toilet? Plus where will grab bars go? There's so much extra room around the space that you'll need to put in floor grab bars which are a heck of a lot uglier than coming in and seeing a toilet. I do agree about the doorway into the guest room. However I don't like where she placed it because now you are limited where you can put the bed and I think the solution is worse. The width of the bedroom is 10'8" or 128" wide. Putting the bed between the wall and the closet on the window side (so the foot of the bed faces the entry door), means you now only have 68" of space if you use a queen sized bed. (A queen mattress is 60" wide) So that means now your mother only has 34" of walking space. Not even a full 3" on either side of the bed. If there's a bed frame, then it's even less. If you place the bed on the left wall you only have 126" and you need 3' for the door swing. So now whoever is on the window side of the room has even less space to move around. So while it solves the problem of the two doors, it really creates another problem because of the bed. By keeping all doors on one side, and keeping the original size of the bedroom, the bed can be placed between the windows because the original room width was 11' or 132". That gives a full 3' on each side of the bed. Also note that clothes don't turn corners in closets. That's the reason I left that area blank. It can be hanging for things like ties or belts, etc.

What is the little hatch in the outside wall? Did the house used to have a coal-heated boiler?

The powder room is all basic white only color is the flooring. I tried to share a photo of the flooring but could not copy and paste. The flooring is 12 x 24 EMSER Swiss Gauli polished. Can you provided some suggestion?