Found a right-angle RCA adapter yesterday, in conjunction with a male-male RCA adapter it removed a heap of cables. Several updated photos are up now, along with a rather poorly drawn artist rendition. Probably pointless given the actual prototype photographs, but just in case the judges are pedantic. :) The battery co advised they're shipping the replacement, so sometime next week I should be able to finally cut the cord. A bit more cable cleanup and some software tweaks and this baby should be ready to wear into some test environments.