Wild Bill’s moves are fairly standard, except that as you play more and more you will find that the 97 hit isnt always the optimal move on UK1.
It seems like killing those boats would be the best you can do, but stacking 92, or with bid units killing tobruk actually does more to stop further Italy moves than the 97 hit. The issue is that the cost involved (losing the Brit med fleet) can actually make it easier for Italy to rebuild a fleet relatively safely, and continue to have a strong effect on Africa, potentially even growing enough to threaten Egypt.
Generally, if you stack 92, no matter what the combined 95 and 97 fleets do, they are doomed. They arent big enough to hit the brit boats plus airbase defense, and they also cant get away from overwhelming brit attack dice with all the air UK can put in the theatre.
Similarly, a Tobruk wipe just completely shuts down any Africa moves that Italy might try and pull off, as it puts Egypt so far ahead in bodies that it will never fall.
Just watch out for the surprise Sealion if you send too much stuff forward to 98 (meaning air)