Unless it's different for shipments to Canada, you can order in 1 pc increments. I placed an order for 3 housings, 10 power pins and 80 signal pins and the prices (USD) on my order were $3.28, $0.611, $0.3804 each, respectively. I think the reference to 100 pcs is just the standard mfg supplied package quantity.

Cheers,
Phil
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60GB Amber 10GB Blue