You'll find that buying low volume from anywhere bumps the price up by an indecent amount....the place I bought mine from quotes ?3.15 for two and ?10.50 for 100 !!!
As an example, I bought a Bellleville Z25 washer for my Benelli the other day....bl**dy thing cost ?3.95 for a poxy conical washer ! Have sourced a place in France that can ship em for a fraction of the cost - trouble is I need to buy 1000 to get them that cheap and they don't exactly rate as a highly consumable item if you see what I mean....thats the advantage of group or bulk buys, but again, the Benelli is a relatively low volume bike so I can't justify the initial outlay for the washers as I'd never shift em....
If there's enough interest in the O rings I'll consider buying them by the 1000 to get the price right down and shipping requested numbers worldwide at cost plus a bit to cover my expenses.