Hi John I think www.vehicle-wiring-products.eu do a transfer sheet which has all relevant decals high beam low beam ect they have online ordering used them before for products excellent service they also stock a good range of japanese connectors which are a good match for the ttr originals hope that may help you
Yeah they look ok for job .like you say they would probably need some laquer over to protect from elements Id suggest doing a test with laquer first on one just to make sure that they stand up to it ok im sure you could get a laquer that doesnt react with the vinyl.