Pictures would be great.....Hi, Nathan -
I installed a set of four molded splash guards on my 2008 Escalade with the fixed steps. It took me about an hour (would've been less, but GM left some of the hardware out of the packages so it took a run to the Cadillac Department at Ace Hardware).
The installation amounts to removing a few existing plastic fasteners and replacing them with some steel clips and using the provided sheetmetal screws to attach it all back together. You have to drill a half dozen or so holes, all in either the plastic splash guard or the plastic fender liner. Easy to do, but you do need a drill and power.
If you decide to do it yourself, you may discover, as I did, that the instructions included direct you to drill out the wrong places in the front splash guards. The directions were vague enough for me the guards at their installation location before breaking out the drill (always a good idea!). It's obvious which are the right points to drill. There's a typo in the instructions.
I like the looks of the rear guards; the fronts aren't too bad, although they're not as contoured as I'd like. I put the set of four on mostly for the fronts - the design of the vehicle makes the running boards the perfect collection point for ice & snow thrown up by the front wheels in the winter. Won't know how effective they are until next winter.