Get the connectors and pins from digikey. Not expensive, but they do have a minimum order qty of 10 and would require a cheap crimper to make the connections to the wires.

3 position plug 455-2219-ND
5 position plug 455-2268-ND
3 position socket 455-2231-ND
5 position socket 455-2270-ND
Pins x 100 455-1135-1-ND

-Jeff