No, home depot cannot cut this vinyl shade.
In the blinds I bought the hardware was included all you need is a screwdriver to attach hope this helps
No I dont think so if I am understanding the question right sideways there would be nothing holding the bottom part of the shade in place I hope this helps
Not familiar with what is meant by outside mounting, these come with either metal or plastic hangers that screw into the wall using a paper guide provided for the left and right and a third for the middle. The blinds then snap into the brackets and covers them. The ones I hung are outside the window opening, versus inside like where the old school roll up shades were mounted. Sorry no pics
No not these but they do have custom but they cost more