I would want 2 skimmers on your large pool either way.Now when you get up into the higher power range do you need to have more than one skimmer to supply the pump or is the one good?
If you stuck with one skimmer and went with a large pump you'd want 2 inch plumbing.
The link above is reputable. Polytech pools, inyopools and recsupply are 2 for the flagship brands. Dohneys and Leslie's have a bunch of the other brands along with some flagships.And as far as reputable online venders for these components anywhere that you guys recommend?