I have moved my gp databases (2010) to new 2012 sql server while leaving the deployment on the current TS. I need to repoint my ssrs reports to the new server and once I do that that and I have ascertained all the modified reports work, I then want to move my gp 2010 install to the new 2012 server I have set up. I can't tell from your post if your recommendations would work in this scenario? For example, are you running the scripts on the new sql server, have you move the ssrs database to the new server. Thanks for your help.
John