Hi Guys,
I hope those who have access to documentation would put in the post above. It would really help.
As for testing I have done this to several OpenACS 4.5 sites. This sites contains, ETP, file-storage, bboard, news, and subsites. I have not tested it for others packages.
Maybe add on the fact that [acs_root]/content-repository-content-files needs to be restored too.
Anyway the above info should be very helpful to others and hope that its Documented.