Moving Publisher database to 2008R2 but subscriber 2005 will remain same. How to reconfigure this?

We are planning to upgrade(not in place, moving to a new machine) the publisher(2005 EE) to 2008R2 EE but the subscriber(2005 EE) will be the same.

Replication Type: Transactional replication
Number of replicated databases: 1
 
Existing
SQL Server 2005 SP4 (Publisher & Distributer) with 8 publications
SQL Server 2005 SP4 (Subscriber)
 
New
SQL Server 2005 SP4 (Publisher & Distributer) this will be upgrading to SQL Server 2008R2 SP2
SQL Server 2005 SP4 (Subscriber) this will be same.

After moving the database to new SQL Server 2008R2, how to re-configure the replication with the existing 2005 subscriber?

There are hundreds of articles (objects) involving in the replication so it is not easy to reconfigure in GUI mode. So looking for plan to script the existing replication and plan to run those scripts on new server to re-configure is this possible?