SSO for RPAS Fusion Client

Hi -

Does anyone have any experience installing/configuring SSO for the Fusion Client in 13.4.1?  We already have SSO installed and working for RMS and we would like to piggyback off of that installation as much as possible.  The 13.4.1 installation guide mentions the following applications are required for SSO:

• Oracle Web Tier Utilities (11.1.1.6)
• Oracle Identity Management 11g (11.1.1.6)
• Oracle Identity and Access Management 11g (11.1.1.5)
• Oracle Access Manager Webgate 11g (11.1.1.5) 

We installed Web Tier on the RPAS application server and configured it with our WebLogic domain as directed.  However these other applications were installed as part of the SSO solution for RMS.  Do they also need to be installed on the application server or can we use the instances that were configured for RMS?  Also is it possible to configure two security realms in WebLogic - one for SSO and one for non-SSO authentication and switch between them as necessary?  We want to setup an non-SSO environment and add users as we normally would in a development environment while we