As to camper weight, what does this sticker indicate?

This sticker doesn't tell you anything about camper weight. You know what Ford says the GVWR and GAWR for the truck are but until you know the truck's weight you have no idea what the carrying capacity is. And on top of that you need to factor in your own risk tolerance since with a 10,000 pound GVWR many campers will put you over the GVWR. Get your truck to a scale with and without the load you plan to carry and then you'll have data with which to make decisions.