Thanks. I was able to extend the C++ code to have a "savedatafromfile" command and used it to save all the initial ctree abbrev files into the leveldb database. It takes up about 330MB total.

I can then get them back upon demand:


In principle another node should be able to get the data from a peer:
But it doesn't get sent for some reason, so it's still work in progress.

Edit: I found the problem, so now ctrees can be requested from peers.