I am looking at using Enduaflood to address the area in my garage that used to have drywall before the flooding we suffered last year as a result of hurricane Helene. I am trying to understand if it would be possible to do a custom installation of the boards on the underside of the staircase that leads from the garage up into the house. This used to have insulation and drywall. It is an area that is at about a 45 degree angel and measures 73 inches tall by 43 inches wide. I have enclosed a photo of this. I am hoping to use the Enduro Flood board to enclose this area as well. I understand that I would have to do a custom installation as the standard mounting approach assumes the panels will be vertical. Is this something EnduraFlood System can support? has anyone else done anything similar to this?

Thanks for the response @Patch2Paint. At least knowing that it is feasable makes me feel better. I appreciate the specific pointers on best practices. Definately want this to be easy to remove should we get another flood like the one last year.
This is a common thing in the basements we work in. I dont think there is an off-the-shelf solution for this, but you can make it work. Remember that the system is made so that it can be removed easily and also look good at the same time. Under stairs like this, we go as far as we can with the panels and uni-trim etc. Then, we end up screwing the last few sections simply to the studs. Use some sort of decorative screws if you want to. Some decking screws for outside may work nicely. The point is, you dont want to spackle over the screw heads, because then you cant find them later. So, use screws that dont make you cringe if you ever look underneath the stairs. I am guessing the area will be used for storage, so you wont see this anyways so much. Make sense?
Brett