Cable worries

Just a follow up on the status of my brakes. The front brake is still useless and I'm still thinking of ideas - currently along the lines of spacing out the disc from the hub far enough to mount the caliper on the outside of the fork mount....

On the rear brake issue I've decided to follow some advice from the people down at the MBUK forum and get some new cable housing to run a fully enclosed cable from lever to caliper. Using some Cable Guides I'll hopefully be able to secure it to my frame without tacky looking zip-ties.