When I was in a similar position (in about 1994), I wrote a letter to about six different OC's of various front-line sqns (all FJ) asking to visit....
This worked a treat - got a one-week visit to 617 (when they were at Marham) and a week at 100 (when they were at Wyton)...
A letter goes a bit further than ringing the Stn IMHO...
Good luck at OASC!
Regards,
SonicStomp