The price per pin will be about $2.00, if I remember correctly, and you will have to spring for a crimp tool as well pliers and wirecutters won't do a proper crimp on the pin (and you will play Hell getting the pin back out of a circular connector if you do use wirecutters to crimp them, as I found out when the new guy in the lab used wirecutters to crimp half a dozen pins then inserted them in the wrong holes).
If you go that route, don't be too concerned about how the pin crimps onto the wire as long as it will clear the interior of the connector once it is crimped onto the wire. My second guess would be to take one or two of each, measure them (length, diameters, location of locking features, size of locking features, etc), then see if you can cross them to an Amphenol or other industrial/avionics circular connector pin. They will probably be Very Proud of them, though.
