I have a neo angle shower in a bathroom essentially in an attic space. I would like to change out the curtain for a door but the ceiling begins at 60" from the top of the pan. So far all the kits I've seen are 72"h. 72" would be fine on the right hand side of the enclosure but the left side would need a good chunk of the corner out of it. Has anyone done this before? What tools would be best to accomplish this? Or alternatively, does anyone know where I can get an inexpensive 60" high enclosure kit?