Manage multiple cloud instances

Hello i need to manage multiple cloud instances, and i want to make one instance for nginx, another for database, etc....

I should get clodmin pro? or use the cloud min connect with cloudmin gpl? Also i will not virtualize the instances, they are allready virtualized cloud instances... i mean, i will create an instance and add the virtualmin to the cloudmin, so i can manage it centeralized...

I need help to know what will be the best choise.

tnx for your time ppl.