Believe it or not, your local Motorcycle Customization shop will be your best resource. Some have the facilities to do it in house, while others send the stuff out for replating.
I would start by checking the directory of shops nearest you for stopping in with your gear for accurate estimates - saves on shipping costs and unpleasant surprises. The shop owners will be more than willing to direct you further.
True Blue . . .
sold the Nauticat