Arrow 10 X 20 Attached Carport

Is there a way to customize this a little bit? My drive way width narrows down gradually going in, against the neighbor's fence (see pictures - please excuse my rough drawing). The width of the port at the entrance will be approximately 10 feet and the rear will be approximately 8.5 feet. I also would like to customize height to start above the window frame. My other concern is securing the post at concrete foundation of my neighbor's fence. What does the foot of the post look like? Can it be secured by nail gun that I can rent from HomeDepot?

I also would like a 3 feet wall from the roof to protect the windows from sun during summer afternoons (see drawing in green).

My driveway's width narrows down. Is there a way to customize this? One side is like 9.5 feet wide and the rear side is 8.3 feet wide. Can I also customize the height because I want to start at the top of the windows. See pictures I have attached. I also want to have walls on the upper part of the open side - about 3 feet from top to middle. Is that ok?

Do you have any other sizes. I was looking for a 10' projection by 14', 15' or 16'.

Can these units be cut? I need one 8-10' projection 14' wide.

How much wind can it handle and how much of a load can the roof support?

How big do you make the attached carports? I see this one is 10 x 20. We are looking more for an attached carport from house over the three-car black top. I think what we want measures around 22 x 30 or somewhere close to that. Do you do that?