Aranon, I have only seen dual skimmers on a couple of occasions. I saw a large Doughboy oval with a complete filter set up at each end once. Two systems to maintain seemed like way to much work for me.

What I have seen done a lot is the addition of a second return near the far end of the pool. This is much easier to do. It only requires one line and the hole can be added with a 2” or 2 ½” hole saw. The second return will help your filter operate better and finish pushing the leaves and bugs back to the skimmer. I would try that first.

Adding a second stainless steel panel would rquire cutting the wall and splicing the piece in. I would not recommend that.

Best of luck, Dennis