I have the Weathertechs floor liners in my truck. I have the Khaki interior and they don't match quite as well as I would like but the fit and work very well. As far as mud flaps, I made mine out of 36x24 rubber truck mudflaps. I originally bought Duraflaps but they were chafing through the paint so I pulled them off and used them to make templates for my rubber one. It took some time to make the templates but they work very well. I probably need to add some weight to the bottom of them to help keep them from sailing but other than that I am happy with them.
__________________
2008 Ram 3500 SLT QuadCab LB SRW 4x4 6.7L G56 Light Khaki
DiPricol Optix(Pyro/Boost/Diff Temp), S67, SB 3250 DD, S&B CAI, Line-X, B&W Turnover Ball, ProTech, PacBrake Air Springs, HBS 2" leveling kit, MagHytec Rear, Willmore Wheel-to-Wheels, Condensor Guard, Jacobs EB switch