Exactly how thick are the spacers used to keep the caliper pistons apart when the wheel and pads have been removed? I am particularly interested in the size of the spacers shimano sells for bleeding their breaks.
ride hard take risks
You can go to the LBS and ask for the spacer brake sets or new bikes are shipped with. They should have plenty on hand since these usually get tossed in the trash.
I have some Hayes but it's a tad early to be staggering into the garage, I can check latter if you need.