We can do the sliders to your spec as requested. The sliders on the 2500 above mount directly to the frame. Pretty much bullet proof setup.
We can do the rear tire carrier to your width needed too.
The carrier uses its own leverage to help lift the tire. It's much easier to use than a swing out carrier. Try lifting the tire and attaching it to a swing out carrier. To install the tire on my carrier, just roll the tire onto the carrier and bolt it on while sitting on the ground. Then use the carrier as a solid handle to lift the tire in place. Actually, the last few carriers I've built, I've used a stinger/receiver setup. You install the stinger onto the wheel, then slide that into the receiver on the carrier.
When I designed the first swing down tire carrier back in 2001, it was my original intention to have the ease of tire installation and a practical single point of connection to hold the tire in place... Quick, easy and very stable. The weight of the tire is directly over the frame horns unlike a swing out carrier where the weight is offset and leveraged at the outer point of the bumper. As you can see, others like the design too, which is a great compliment!