Sorry the paint code link is no help...
I will be painting ours eventually, so your dilemma will become mine also...
Maybe some e-mails to Lotus...
A brand new big name body shop just opened about a year ago close to me.
I had the manager come look at the lotus for an estimate, two days later the reply was, "The owner said your car is too old/rare, we are a production/insurance shop." Thus wanting nothing to do with it.
I'll talk to some other leads I have & see what I can come up with...
Meanwhile, I sleep better knowing that if I ever buy a Prius & get a dent in it, they will be glad to take my money.