I do some slot car racing, and they sell a silicon wrapped wire that is common on slot cars guide pins so that it will swing back and forth ..and even act as a spring. Now admitted the wire does come loose and break .. but that is after numerous HUGE impact crashes.
I think that type of wire which I assume is available for many things? would be a good substitute....
http://www.fantasyworldhobbies.com/1...ad-wire-50-cm/
Now that I think of it RC cars probably use it as well ?
Anyhow If you decide to go Futaba.. I am using their older FASST setup.... I can say two things truthfully, the receivers are expensive. And, I don't think I have ever had a radio failure in the 7-10 years I have used it....