Copy Users

Read a couple of old threads but not finding exactly what I was looking for. Anyone have thoughts on best method for copying users (LDAP info) from one server to another? Doing an upgrade and moving from 32 bit to 64 bit (9.0.1.1 to 9.0.1.11). Don't want to just do an entire LDAP backup and restore for a few reasons: 1) have old users that need to be cleaned out, 2) don't want all of the identities, 3) etc..

Also - would like to see of whatever I come up with can be used on a more ongoing basis to copy users from prod to test.

Any thoughts? Need to capture all of the user elements (roles, groups, etc). I know that I can use ldif command to dump and load, but also know that I can use lawson load users command as well - so there are multiple ways to do this. Just thought I would see what ideas I could extract to come up with best method.