Thanks for the info...
Oddly one side looks mint, the other has bubbled and dulled slightly.
I have a sandblast cabinet, so I could strip them back.
I will see what local powder coaters would charge.
There are some other areas than could do with attention - front of the block and some smaller areas on the swing arm.
Headers are brown too, but that will just come back if I clean them back to new metal.
Just looking to tidy up a 2001 bike that I have just bought!