HELP w/the area behind the front seats....

[Blizz]

but not quite the foot area for the back seat. why do they not make replacement panels for that area and/or can you fab that pan yourself with some sheetmetal? if so, what ga. should be used? also, if anyone has a completely restored floor from the back where the bed starts to the footwells, i'd REALLY appreciate some pictures. i have a lot of rot and rust on my floors and trying to figure out what everything is supposed to look like has been a PITA.