Your scenario is not a strict migration, as you've indicated, so we don't have any documentation to walk you through the process, but the following steps should help.
Make two copies/backups (e.g. db_B and db_C) of the SW database for your site A installation. For more information about creating database backups, see the SolarWinds Technical Reference, "Moving Your Orion NPM Database".
Complete the installation of your Site B and Site C installations, using databases db_B and db_C, as indicated in the SolarWinds Orion NPM Administrator Guide.
Note: You will want to delete duplicate objects.
Configure your EOC installation on Site A, as indicated in the SolarWinds Orion EOC Administrator Guide.
Thanks a bunch pacetti!!! I figured it would go along the lines you pointed out but wanted to make sure b/c this would be my first time attempting something like this with SW. I will update with my progress.
I am probably asking a really dumb question here but I not a SQL admin by any means so here goes....Do you have to stop Orion Services to get a valid DB backup? Also as a best practice, what features in sql 2k8 server standard r2 need to be installed with core SQL? Thanks again for all your help!!!