ok this is an idea for your visor put the paper visor in so you have some thing to glue the chips too cut out just enough of the middle so that the regular visor fits then take a regular visor and put it in the middle were you cut the hole then take some glass chips or visor chips the same color...
here is my sniper that is in progress
http://i162.photobucket.com/albums/t270/LI...randhart063.jpg
http://i162.photobucket.com/albums/t270/LI...randhart062.jpg