How Hastings changes without Stamford Bridge

If Harald Hardrada's fleet disappeared, how large a naval battle would Harold Godwinson fight against William, and who would win?

Harold Godwinson could wait ashore for William instead, with rested huscarls, more time to gather levies, and a stronger position for a land campaign.

Removing Hardrada's invasion gives Harold Godwinson little reason to seek a naval battle with William. He could let the invasion land, harass it, and concentrate his main army for battle ashore. His professional huscarls would avoid the march north, battle at Stamford Bridge, and hurried return south. Local levies still faced harvest obligations, but a single invasion threat gave Harold more time to gather them and concentrate his strength. London's money, workshops, and supplies would remain behind his army, while Winchester retained its political importance.