Hi Botch,
Another way of looking at your situation, I would pay Not to have wheel covers on our Sprinter...
On long trips, At Every 2 hr or so stop, I check the wheel nuts for tightness, a finger job and heat ( bearings/brakes/tyres) while SWMBO makes a cuppa etc. I also use a TPMS Tyre pressure Monitoring System ( sensors on the valve stems) that with the wheel trims could be a problem. The TPMS has saved 4 tyres (Sprinter, Cruiser and Caravan)in the last 18 months and I think they are a great safety item.
On Short trips in the Bush I check the wheels nuts every morning prior to start up.
My viewpoint, some of my friends are also very happy with their wheel trims.
Peter