A good amount of JK owners did this when I had mine. I went BD so I wouldn't have to worry about the carpet floor. I think it would be fine on the bronco depending on how they route wires and bolts. Might limit your resale audience though if thats something you are concerned of.
Awesome thought. Would consider as I plan on removing the rear seats on a 2dr. Whether by wrench, or blow torch .. they are coming out!
Is line-X a fairly straightforward, do it yourself thing ?
It's certainly a good look.
I guess it just depends if it needs it. The rubber floor with drains should cover the area under the seats that would be at issue. I plan a Goose Gear flat cover for that area.