Is there any frames for the display, so mounting in an box will look ok, rather than s***?
I have an 3.5" and a 4.3" that I need to mount in an box.
Open a "New Support Ticket" located in the upper right hand corner and ask the staff directly. I believe I saw some 7" housings on their facebook feed, I have to imagine they have housings in other sizes. They also do custom 3D printing, so it should just be a matter of working your requirements out with them.
I am now reviewing all of the Feature Requests, this will take some time, patience please.
This is not Nextion Feature request - I will try to redirect