Anythings possible but why would you want to do that ?, looks good on series 2 with more rounded shape but a S3 ????, the shapes all wrong even down to the horncast. Just my opinion. Probably has been done by someone somewhere
Not just Allwyn, SIL GP's, Kelvinators, Falcons and the Super Starstream to name a few. Most of the Indian models had them, and the GP had little bolt on extention piece for the horncast similar to the Spanish, but not as curvy.