If you can get new cable for the leadouts do it. I am fortunate enough that I have a roll of .027 cable for leadouts. I cut them much longer than needed. If you can get to your bellcrank, see if you can remove it. At my local hardware store I found some tubing in 3 foot lengths to feed down thru the wing. After putting new longer leadouts on the bellcrank, make sure you have bushed them at the bellcrank, feed the leadout cable down thru the tubing. Put bellcrank back in place and finish the leadouts. I have replaced leadouts on almost all of my ARF's this way. By the way you may have to drill out the leadout guide for the tubing. Then rebush it. Have fun, DOC Holliday