Hi m8 I just had the same problem. I went to my local scrappys to pick mine up they all seem to be the same for the 200/400 new and old shapes. I payed 2 squid for the set. Good Luck
Benny
what i did for my last car was i used the plastic covered wire that is used for hanging net curtains for the outer and for the inner most radio controled modle aircraft shops sell the wire in metre lengths so you can make them up your self. Also sierra bonnet release cable is very good for the outer cable.
I have the same problem. Only had the green ones. But I think it's the yellow one which is longer. When I emailed Marlin about where to get them from, they said you can get them from them.