Katana Owners Club U.K.

550 &650 panels not interchangeable. You have really narrowed down your possible options by stating must be in excellent condition. So you want new old stock then. 30 years on panels won't be excellent unless they have been repainted, then is it in the shade of silver you have? even 13L the correct colour will be faded.

However there is a NOS. Right panel on E bay now.