Integrity Lifecycle Manager Server Requirementrs

We are soon to set up Integrity lifecycle manager with our PDMLink 11.0 system, and what curious how others and configured their systems. Standalone server,processing power, memory, disk space requirements are main interests. We are also still using RequirementsLink and not sure how we are going to convert/integrate. Any help is most appreciated. Also, which of the releases are reasonably stable. Should we go to the latest(11.2 I believe). Thanks again!