Boba is said to have several sets of armor, in a variety of colors with mission specific waepaons and armor plating. So, who really knows how many sets he actually has? In the LotF books, he still has Jango's armor and has considered wearing a piece of it in traditional Mandalorian style but I confirmed with Karen Traviss that by the end of the series, he had never done so. So, with what we've actually seen in the SWU, we know he has the ESB and ROTJ sets, the prepro is more a combo of sets t hen likely to be it's own set. He also has the set he lost that was claimed by Jodo Kast (can anyone enlighten is Jodo repainted it or left is stock?). We also have seen the Animated style armor and per the books know he still has Jango's. We could also say that the "White Fett" armor, although it never went beyond the concept phase, could be a set he has.
Going back to the original question, Has anyone done a clean Boba... there's a member of the Mando Mercs, Ge'tal Gratua that has a clean set of Boba armor. He is a prop builder from Malaysia and I believe he frequents these forums from time to time. He hand builds all of his armor, without the use of commercial templates, and uses sometimes bizarre materials but, his armor is top notch in appearance. The clean Boba set he has matches Boba's known cannon color preferances but, is not cannon as far as gaunt type etc. So, technically, it's a custom Boba. I'll see if I can pull a couple pix and post them here.