I also skipped the panel. Mine flight box already had the cut out. So I covered a piece of 1/4" ply with monocoat to fit the hole. Then put two brass bolts through it connected to the battery. The pump and starter I use have clips on them already. They just clip to the brass bolts and it works great. I don't like the glow drivers with a cord on them so it was not an issue. This set up has worked great for 15 years.

David