Bidirectional multi-node, is it valid configuration?

Hi,

Can anybody suggest, if following configuration is valid?

There are two sites, which must be independent, so each one holds its own vCenter instance and its own vCO (which is configured with same site vCenter only).

Administrator must be able to login to any of vCO's and launch tasks which may affect inventories of both vCenters. So each vCO must be able to remotely execute workflows from another vCO instance to control that vCO's vCenter.

So is it valid to configure each instance to be both - master and slave for another vCO?

Thank you.