On my 350 GTR, gloss black on the frame, swingarm, rear footpeg brackets, tail light bracket, seat pan and bracket, center stand, switch bracket, and lower triple tree, is about $480.00. Semi-gloss black on the instrument brackets, $20.00. Non-metallic silver on the lower forks and engine side cases, $160.00. The powder coater I use is very motorcycle oriented (restores vintage two-stroke dirt bikes for himself), so he knows what to mask, and to question anything that looks suspicious after stripping. Unlike chrome platers, powder coaters most often do not do any detail work. So grinding off weld splatter, removing casting ridges, etc. is left to the customer to prepare in advance.
Back to the chrome plating, the usual copper/nickel/chrome procedure does not apply to the exhaust system (assuming you intend to start the engine). The initial copper plating process is not performed, as it won't tolerate the heat. Make sure your plater understands that.
There are a few other parts that are usually zinc plated. The coil brackets, axle spacers, sidestand, steering damper components. horn bracket, points cover, rear sprocket, and a few other things that I've probably missed, are usually processed by industrial platers, they charge by the pound, and do no detailing. So, it's up to you again to take care of that. A minimum charge of $10.00 is typical.
The black plastic knobs (damper, side covers) should clean up nicely. Wash them in detergent, sand with 1000 grit sandpaper and soapy water. Dry thorougly, apply black paste shoe polish, then buff.
