Regarding drilled out rims, that's been done. Detroit bike builder George Omelenchuk built bikes for his daughter Jeanne, with many custom components including drilled out rims
http://2.bp.blogspot.com/
Jeanne went to the Olympics in 1960, 68, and 72. She was a speed skater too.
Mark Petry
Bainbridge Island, WA 206 618 9642 <mailto:mark@petry.org> mark@petry.org