You could send a pm to Gagger or any of the other mods using the "Inbox" conversation functionality.
Alternately just do it anyway.
Gagger and the mods will let you know pretty quickly when lines have been crossed.
I think as long as the plugs and links to the web sites etc remain within the one thread, and there is little or no "cross posting" in the more general threads, then the mods would probably be reasonably happy.
Think how the School Sporting Scholarship thread acts as a safety valve for the GPS and CAS threads. As long as the shameless club promotion, banter and plugs remain within The Mighty Two Blues Thread, and does not spread to the Shute Shield thread, then there may not be any problems.