Multiple RMAD Console Backup Consolidation Using Management Shell

I was wondering if anyone would be willing to share how they approached the consolidation/sharing of registering backups from multiple RMAD consoles with each other using the management shell. High level approach or even code samples would be much appreciated.

I have seen some April 2012 posts from tsvetkov.alexander on this site that do provide some code samples, which are very helpful, but I was wondering if there might be more information on this topic. Mainly how was the issues of removing purged backups from the multiple RMAD consoles that were imported and added using the management shell?

Also, would there be any information on the release of the next version of RMAD/FE and if it might have the ability to share backup registration information between multiple RMAD consoles?

Thank you!