Powdercoat adds value. I charged 300 more for a nice Magenta PC on a GB pro. I could have sold it with stock trim for 300 dollars less The buyer chose the PC because of the hassle to remove it all , bring it in , and reinstall. This machine was also being put on route. The buyer had no down time waiting for PC, paid my cost for it. Its a break even proposition at best. If the buyer doesn't want to pay for the mods, just pull them off and sell them separately. That would be the best ROI on mods.