Looks great Nino, Bumper sell the real 3M mylar it is quite a lot thicker than the cheap stuff.
pinrestore.com sell them for US$13.50, so I stocked up on a few rolls. There is sometimes mylar sheets on eBay for $50 - but that is simply thin adhesive vinyl.
That is a bit cheaper than bumper at about $70 for a PF sized piece, but it is good quality