Hey Dan. Ormiston wire. I'd have thought 1.4 would be fine. The pins are effectively nails - if you can find stainless nails, copper ferrules and a stainless wire you'll be in. The higher the wire count the more flexible it is - for example 7x19 is more flexible than 7x7.
In reply to Dan Arkle:
I always re-use the old cam to cable connecting wires, they have little grooves pressed into them that are hard to reproduce at home.
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