Those customer RR builds are nothing to do with the staff team so we don't provide "support" for them. For that you really need to find the creator .. who appears to have disappeared.
The issue is, the 10.80.12 repo is (was) a pre-release repo and once LE11 shipped we updated the repo version to 11.0.0 and eventually some cleanup removed all the pre-release stuff to save disk space. Hacking an 11.80.2 repo onto the system is a wrong move since that's a pre-release repo for LE12 so things might not be too compatible with LE11.
The better solution would be to hack the current 11.0.0 repo in the image; although whether that's fully compatible with the pre-release state of the rest of the image still isn't something we can answer.
The correct solution would be to rebase the RR changeset on current LE11 (not a pre-release version) and build a clean image.