Yes they both are 'plug and play'. Ultratherms are not self adhesive, so some tape would be needed they would be attached the same as any other type of UTH. They are low power low density units and rarely get over 100ºF I use them and have never needed more heat even in my cool rooms. There is no way to get a contact burn at 100ºF even as high as 180ºF if you can touch it is is likely safe for momentary contact. There are some (Dr. Del admin here) who does recommend 'caging RHPs' but he is in the minority. The cage you are suggesting is only 11.5 tall and the RHPs are usually about 2 inches deep (leaving only 9.5) and if the hide is 2 inches •mine are 3.5• (leaves only 7.5) I believe all or most RHPs this is inside the min safe distances so it is discounted anyway.

I like vision enclosures personally the roto system leaves round very easily cleaned corners over the slab construction. I am OCD and clean meticulously and fully disinfect so round corners make it easier.