You asked specifically for helpful comments, so if we can move past inane personal superiority commentary and on to your questions, I think everyone agrees that frame mount tiedowns are the best approach for the new aluminum bed Super Duty.
I put the Torklifts on mine. The front tie-downs are specific to what running boards you have or plan to install, and the rears are specific to what hitch you have or plan to install, so the part numbers I ordered may not be the ones you would need. The tiedowns, like much of what Torklift sells, are pretty tightly price-controlled such that almost all places are exactly the same price, but FWIW I bought mine when I bought them a couple months ago from hitchsource.com. At the time, they had 10% off if you bought a front and rear set together, so that saved me about sixty bucks versus other sellers I checked.
I also put Timbren springs on the rear axle. I called and spoke to an engineer at Timbren, and for slide-in camper use he recommended the "severe service" FRTT350J, which fits both 250 & 350, over their standard rear spring, based on the high center of gravity of a truck camper. I installed the Timbrens in about an hour at a relaxed pace and was quite happy with the how the truck and camper rode bringing it home 800+ miles after purchase.
Good luck with your new truck, camper and accessories.