The one problem with Olympic Rivets is they need to be shaved after installation to look good. I will probably end up following past post's recommendations to use a Dremel tool due to the high cost of rivet shavers.
But, just in case a bargain was to present itself, I started watching rivet shavers on Ebay. I believe all the ones I have seen up to this point are Government surplus from the aviation industry. I would think these would work fine, but do not know what the specifications mean. For example,
Used, 1/4-28 Threaded Bits, 1 Quick Change Magnavon Microstop
1 very good surplus 1/2" Carbide RIVET SHAVER Bit
365 x .124 collar cutter / hollow counterbore - new
What specs are appropriate for shaving Olympic rivets?