How To Transition SPL Content Providers

Hello,

Seeking advice on best approach to transition sanctioned party list content providers.

What is best way to disable current sanctioned party lists? Looking for a way that requires minimal development in GTS.

Options we have outlined are:

1) 1) Develop XML file that contains each sanctioned party with an end date then load it through the standard load transaction

2) 2) Develop GTS program to mass end date sanctioned party lists

3) 3) Request file from content provider with end dates for SPL

4) 4) Create a new Legal Regulation for the new content provider and deactivate the current one

Are there other options?

How have you done this in the past?

Thank you, Jeff