the only reason im trying to make my own is that everyone seems to have the same ones. now i agree that who ever made those have greater build quality than mine will have. but im not looking for quality... as long as i can accept it and know that i made it and it works good is ok with me. plus this way i can have the colors or the brightness the way i want it to be.
by the way i think i have the circumference ... 4in for the projectors and 5in for the high beam. approx