Well if you are just looking for bulk 2u stabs buying them from an electronics supplier like mouser, which has the cherry 2u stabs for $0.88 at a quantity of 1 and dropping after that, might be cheaper:
Cherry G99-0224And shipping starts at $4.99
Ceflame, you could possibly order all extra 2u stabs from mouser to get a cheaper price if you get a number of orders for those. You could probably save on the shipping from korea too if you could work out just getting the 6.25 stab bars from there and source all the stock parts locally.
Well.... I just did some searches, and you can even get cheaper than mouser (for the 2u stabs), I'll just leave this here for some thought:
Some even cheaper prices..edit: ignore me I am an idiot and had the wrong part number there, all that is hidden above was for plate mount stabs, PCB mount ones are these