Thanks Michael - that's very helpful, I will checkout the healthcare page. I'll also get in touch with Nicole about updating and migrating cycli to neo4j-contrib (would there be concerns about duplication with cypher-shell ?).
I've already found this forum helpful - David Allen's post has already inspired me to set up the CloudFormation Neo4j instance I've been meaning too (very straight forward thanks to GitHub - neo4j-contrib/ec2neo: CloudFormation Templates for deploying Neo4j ).