All these methods are not so easy. You can't take a decision easily.
It will totally depend upon your organization that what way will be most compatible for them (or even you).
Option 1 and 2 can be done by you (or even your organization), but option 3 can't be done by you. This service is also not from SAP support (read KBA 1873593 - LO-BM : Batch management flag is not possible to set / unset).
You should sit with your organization (including manager and other colleagues) to take a decision.