Thanks 303 .... I'll give them a go.
Out of curiosity, I phoned my local LR stealer and asked for the price and availability of the original cable/hook unit, AYG7474.
Available out of Melbourne @ $872.70 ea, tax inc. I'm sure I saw a glint of gold in that wire braid!
Found that 2.0T rated hooks are around the $50 mark and I've been quoted $200 to make the cable with silver soldered free end and to swage a high tensile thimble around the hooks eye.
Sounds like a good deal to me, but first I'll need to get the cable specs from the manufacturer, as I'm not taking any old rubbish they want to throw at me.
I'll let you know how I get on.