I have just picked up a Rossin Ghibli frameset and have been looking into re-finishing it. I am not sure about your bike but by the time 10 Speed Drive Imports was involved in bringing them into the country (late 80's) the bikes were painted with Dupont Imron which is a catalysed base/clear system. I believe that it is quite a toxic paint (aren't they all?) but you can still have it done.

Where did you find the decals?

vjp