floor plus ?

I have looked at dozens of posts and searched a lot, but, is the rear floor a single panel with L shaped rails around the 4 sides with x braces or is the floor in 2 parts, also I like the idea of Green Hornets ally chequer floor so can it be bolted down, I am thinking of what I call self drilling hex headed screws
Dev

DISCOVERY BOOT FLOOR REPAIR PANEL PACKAGE | eBay

This shows the componant bits...including side panels.

when we did our boot floor, we fitted it down with these and the appropriate screws.

nutserts | eBay

It means you can remove the floor for inspections, check brake pipes and suspension parts, even to paint the chassis

I'm in the middle of rust removal now, I've just done the boot floor.

It's all 3mm now with the original panel bolted back in, I just cut the rusty edges off.
I'll replace it with more 3mm when I've got some spare cash.
There are around 18 M8 bolts holding it down with the nuts welded under the floor.

Thanks guys, good idea James I think thats how I'l go as the damaged areas are limited, nut serts great idea too cheers Dippyud