I would actually recommend creating a new IDEA to change the default behaviour on the initial repliction to omit client packages & defs as well as the logs.
This would get replication up and running with the smallest data requiring transfer.
It should be up to us to decide how to get defs on the new site.
In the meantime, the work around is to reduce the number of defs retained before setting up the partner site, or go down the below article's route:
http://www.symantec.com/docs/TECH95122