Being drunk and sexually assaulting a woman is an offence. But not remembering something done when drunk isn't perjury.
So K can reasonably say I know nothing about the incident, can avoid providing support for the allegation, without admitting culpability and without contradicting Ford.
If that's the case, Ford may have insufficient evidence to proceed any further and K might step aside with his dignity somewhat intact for the sake of the nation and for women in general.
Having K's dirty laundry laundered in the senate is no way for a nominee to reach the Supreme Court. I hope he steps aside for the sake of the US and its institutions.
Actually, I think it would be good for the country if the GOP loses a nominee, having cheated the Dems of one. Then reconcile the senate by installing Merrick Garland in the open seat.
At this point, saving the US from its terrible politics by an act of decency is worth a lot. K is in a position to provide it. But I doubt he is willing to pay the price.