I, personally, wouldn't let Camping World install a floor mat in my RV. You have to make up your own mind on that.
This is not any one place or even kind of place to go for Sprinter suspension upgrades.
The common upgrades are: Sumo Springs, Beefier Anti-Sway bars, Sterring Stabilizers, and new Shock Absorbers. So, any one can do that kind of install. Check out the
https://www.sprinter-source.com/foru...-conversions.4 to get a better idea of what folks are doing and what places to trust.