Process Definition could be download and upload as (.bpmn2 .json) in Intalio Designer.
Did not found a way to load form moduler in Form Builder.
I think one think to take into consideration is that the project prior to becoming a deployment unit is stored in the artifact repository which based on GIT. This can then be shared on a artifactory cluster amongst the servers hence appearing on all the participating nodes without the need to download/re-upload the project, some resources can be found here .
To share execution engine & session/log data in the cluster the engine (suite) and database needs further clustering/replication.
On the other hand you could also import from the GIT repository the projects into eclipse (make if any necessary changes) and upload the new project to the second server as a new project of the 2nd server's repository (in the case that you are not interested in clustering)