I'm not familiar with those connectors, if you can pm me a picture of them I'll see if I can find the type of connector and the pins used if you like, I'm only familiar with the engine harness plugs but if it's a common connector I might be able to find it for you.
I got the pins for the hx 040 plugs from eastern beaver in Japan. they were the only ones who I could find that sold male 3 Way Sumitomo HX 040 Plugs so I just ordered everything from them. If I recall correctly I've read that the swap/harness companies like sparkks, hybrid, chase bays ect sell the pins if you pm them with what you need. which pins are you after exactly?