Ernesto, please also ask him to look at the factory tuning-parts cataloge. The first Jota was mostly produced for Slaters as the 3CL/E (E for England). Slater basically used the factory higher comp. pistons, the factory 4/C cams and propably also a factory tuning half-fairing, which then later got into a "series"-model. So - my best bet is that you will find the necessary parts special to the 3CL/E in that factory tuning catalog (I have it somewhere, but can't remember where I put it, sorry... I know defenitely that the cams and pistons were in there as well as the Corsa head, the 3-1 "megaphone" exhaust and other parts; not 100% sure about the fairing, but that would not surprise me if it was in there, too...)