I have a pair of casement windows with dual locks on each and a crank operator at the bottom. Everything is finished in bronze. I've determined the manufacturer (Truth) doesn't have one for one replacements for the hardware in the color I want, white. The question is how to select and apply a durable white finish to these metal parts. The windows are located directly behind the kitchen sink, so the windows and parts will receive cleaning pretty frequently compared to other window hardware in the house. Everything is removable. Any suggestions??