It looks to me from a frequency standpoint that the F5 coil would be a good match. Don't know about the connector though. I am just opposed to using a 5 inch coil and creeping along when I have large areas to cover and little time to cover them. I really wish that they would make an elliptical coil that was 7.5 or 8 inches by 5 or so inches. I have them on my Whites and my Minelab machine and they seldom come off.
So far I am really liking the recovery speed of the Omega and other things about it, but would really like to add this coil to my arsenal.