fiberglass door. that is a special order size but can probably be ordered from Lowes or HD. nothing will be fast for that size however. special order about 2-3 weeks custom made door longer try jeld wen, masonite, or reliabuilt for starters

By my suggestions I'm not purporting to have worked out all the issues. I'm just suggesting some changes -- as an example -- that I think would make it a more organized and easier to "read" landscape. Probably the main thing I'd do is massage the circle drive to being more in front of the house, which would make it look like it is the main entrance point/path for the house. I think its position relative to the house is more important than it being a perfect "D"-shape. Even if planted plainly, which I don't think is the intention, the bed lines going to look distracting. Smoother bed lines would be easier to view and easier to maintain. You could still fill the beds themselves with all kinds of plant excitement ... even busying it up if that's what you like, but it would still look more civilized if the bed lines are clean and simple. The same principle applies for walks. They will seem less distracting to the overall flow if they are simple of curve. Again, I'm just trying to give you an example. You could evolve the plan many times over according to your latest thoughts and parameters. It's an ambitious plan. Good luck on implementing it as it would be an awesome transformation.

partim,,,OP said that she wanted to rip out the shower and increase the size. I was merely giving her options. Without reworking the layout, to some degree, she won't get a larger shower. I gave 3-4 options which include minor changes, up to drastic changes. OP asked if there was a way to increase the shower without it looking weird. She asked, I answered. Up to OP how much she wants to do. She mentioned trying to get away with just patching some drywall. If she wants a larger shower, merely patching drywall isn't an option! And I disagree about wishing for something better. I redid my master shower way back with the absolute minimum. I always wanted something bigger, but just worked with what I had. Hated it the entire time. 12 years later I redid the entire thing the way I really wanted. It was a huge undertaking and would have been simpler if I had done it way back like I wanted. Now, I love my bathroom and am so glad I went BIG.

Wow, I had no idea there was a front door back there. In addition to the excellent visuals from Yardvaark, I suggest doing some research on what's invasive in your area as you have several listed on your "want" list. I find azaleas to be pretty boring one-hit-wonders. At least find some flowering shrubs that may offer interesting shapes in the "dead" flowering spikes (in my own garden I find Clethra's flower spikes to still be interesting through the winter). Add some grasses, varied shape shrubs and ones that will change color in the autumn. You can look for ones that feature interesting branches or bark which can be shown to good effect against the snow. I think you have a lot of plants for the size bed shown. But maybe the image is deceiving.