Separate ports for Management Portal vs SOAP/REST Services to block access to Mgmt Portal

We are using an F5 load balancer to route public traffic to our IS server. My goal is to block public access to the Management Portal, and only allow what we want to expose, such as REST/SOAP services. At the F5, they can block URL wildcards or specific ports, so those are our options.

Since the URLs for the web services are in the same path ([host]/csp/healthshare/[namespace]/*), I can't see any URL wildcards happening. That leads me to ports; is there a way to put services on a specific port for all services, and everything else stay on a standard web port?

Any insight or ideas would be helpful.