Goran,

I have been following with some interest the various "The Future of SM..."
threads and learning a lot.

The description of your storage linkage makes me think of plex trees.
Searching on Google for the words    plex tree algorithms    yields up
quite a collection of papers and articles you might find useful while
working the interlocked tree relationships.

Hope this helps,
tap

P.S.  SqueakMap is getting better.  Thanks for your excellent work and
leadership in the Squeak community.