clear side marker lights

[Boardrider52]

i am wondering if anyone knows where toget the clear side marker lenses for a 75 chevy, or should i shave them in. i shaved the mirrors, gas tank hole,tail gate, tail lights and have a godfather customs flame tail light rollpan. i do have the clear turn signal lenses on the front with blue bulbd and like how it looks so if anyone knows about those side lights, let me know.