This is our experience in standing up another Avalon system on the same host to do red black deployment.
Clone Fedora
In Tomcat, copy webapps/fedora to webapps/fedora3.
Copy /usr/local/fedora to /usr/local/fedora3
Copy /usr/local/tomcat/conf/Catalina/localhost/fedora.xml to fedora3.xml and point "fedora.home" to /usr/local/fedora3
Clone avalon Solr core
In /usr/local/solr/solr.xml, clone core avalon and give it a new name, eg "avalon_r5"
Copy /usr/local/solr/avalon to /usr/local/solr/avalon_r5
Clone database
Give it a new name
Deploy Avalon to new folder
Make dir /var/www/avalon_r5
Copy shared folder from /var/www/avalon to avalon_r5
Edit shared yml files to reflect changes in DB, Fedora, Solr
Cap deploy from your local machine to server.