Welcome to the Stingray Forums! If all you are looking to do is load balance the Citrix Web Interfaces and XML Brokers for XenApp or XenDesktop, it should be pretty straight forward. We probably need to formalise the documentation a little but the only element that might be a little bit of work would be the health checks for the WI and XML Brokers.
If you are looking to load balance the actual Citrix Access Gateways, this is just like load balancing a regular HTTPS application where you don't actually offload the SSL.
Can you tell us a little more about your deployment use case?