Early Rocker Drainage- How was this supposed to work?

[TC911e]

I'm deep into rocker rust repair and am puzzled as to how Porsche expected this ever to work. I've got the inner rocker replaced on the driver's side and am warming up to the outer rocker repair, but the reproduction parts for the outer rocker and kidney bowl look substantial different from what I think the original looked liked. With much of the original metal rusted away from the kidney bowl and the rear of the outer rocker, I'm not sure what is really supposed to be there.

This is what the "undisturbed" side looks like:



The kidney bowl looks completely open on the bottom and there's a significant gap between the outer rocker and the jack receiver reinforcing plate. Was this really the originally design (it doesn't seem to be that smart to have that much untreated sheetmetal intentionally open to the elements)? Is this way it's supposed to be or is there something missing?

The new stuff looks more like this:



There's still some coping of the outer rocker to fit up to the new kidney bowl, but the flange on the outer rocker is close enough to the jack plate that it could be fitted tight and welded, or opened back up to look like the other side. The kidney bowl I suppose could be opened up as well, but that doesn't seem like a good idea.

What is the right way to put this stuff back together?

[Porboynz]

Replacement kidney bowls are as you found now enclosed at the bottom with a small drain relief. I considered cutting the bottom off to replicate the original but decided not to. I did fit the outer rocker up to the jack receiver plate and panel beated it so there was no gap, I did not want water and crud getting in there. I also made sure the outer rocker had plenty of drain ports along the lower edge. Check the front is sealed up from crud coming off the front wheel as well.