Hiya Woodcutter.
There are a couple of diffrent ways to go for tow cables.
This is one alternative from Tiger Models. I use these sets, and I can say that they are absolutley awsome, and simple to use.
http://www.tigermodels.com/Shop/picserve.cgi?picserve=German/10004Full.jpg
You can order them here if you want. They are the very first item at the top of the page.
http://www.tigermodels.com/Shop/agora.cgi?cart_id=442.24790&product=Tigermodels&user4=German&xm=on
It has enough collars for 8 cables (16 ends) and 5 feet (not scale, but actual feet)of the line for $6.50. But I suggest if this is for you, to stock up as Tiger Models as it is now is going out of business. But they are going to return in a diffrent form. I don't really know what that means, except that some of their items I think are going to dissapear. And right now, there is no way to know what will go, and what will carry over to the new company that comes out of this.
Also another possibility that I have used before is something that I have seen in more than one hardware store. It is plain cabled copper wire found in the electrical dept that comes packaged in 10 foot lenghts for use as pull cords on light fixtures. It is cheap and just the right size to glue on to the ends of the kit supplied cable ends.
And the one I was using over 25 years ago and is super super cheap, is speaker wire. It is also available at most hardware stores for pennies per foot. The only down side to this alternative is that you have to strip the insulation, but that is quite simple and quick.
Gary B)