We have sold a lot of kits for Suburbans, Chevy Taho's, GMC Yukons etc.
You can see a picture of an install on a GMC Yukon here at the bottom of the page.
The hydrogen generator installs from one vehicle to another are not that different. Where to place your generator and components is probably the most time consuming part of the install.
With your Suburban you probably have an extra battery tray or compartment. That is where we see a lot of customers with these vehicles put there HHO generator.