Having personally been all over the map on this subject, I can give you my personal experiences and my step by step solutions, AND tell you I am still a "work in progress" with this issue...
I first considered this, from racecityproducts.com but found my Hummer H3 was too wide to fit on the dolly....You may find the Suburban too HEAVY to pull by dolly, but check racecityproducts.com
I then bought a 24' Stacker trailer and carried my Hummer H3 and golf cart on the bottom floor and then could carry up to four bikes on the elevator lift...Here's the picture of the Stacker trailer, I still have it in my driveway, but am currently not using it...
After looking into the bike lift on the back of the coach and consulting with Blue Ox, I found a bike lift on the back of my coach was not an option, due to the weight of my coach and how much of that weight was on the rear and tag axles.
I am currently waiting for my Blue Ox sportloader to arrive and will install it in the bed of my new Chevrolet pickup...
I traded the Hummer H3 on the pickup and will use the bike carrier in the bed to haul my Harley Screamin' Eagle Ultra...
Stay tuned!!