And so it begins again...
I have finally decided to tackle the rust issues on my 300TE which appear to be a bit extensive on the floorpan. I already have a good part I removed from another member's parts car (Thanks Hanno) to weld in.
This saga began last summer when I went over a bump and felt the driver seat shift a bit. It seems that the rear outboard seat mount rusted thru the floor and fell all the way through. Upon closer inspection the floor had begun to rot out under the seat mount brace so I knew it would need to be tackled at some point. So far I have removed the driver seat and begun to see what I'm dealing with. Its not pretty but it should be repairable. The car had some more extensive rust repairs done before I bought it which are holding up perfectly.
Nest steps are going to involve removing the passenger seat and center console so I can get the entire carpet out to have more room to work and see if I can salvage the carpet.