What's the hang up about CAT II V CAT III??? The normal minima for Cat II is 100ft RA and 300M and for CAT IIIA, 50ft RA and 200M (OK on the Jepps it may be different apt/rwy specific), if you couldn't get in on CAT II but you would get in on CAT III, just a bit of bad luck and you may have to shoot another approach.
Where Cork's let down are the high winds, and thus for the aircraft I fly it makes SFA difference if were are CAT II or CAT III. The X Wind limit being 15kts for autoland. I believe the F100 can limit is far superior in the region of 30-35? (Pls correct if wrong). So if the wind's out of limits for autoland it's back to good old Cat I!! So sometimes you're just not destined to get in!
I don't feel having CAT III capability in Cork will solve all it's problems.
MK