In a perfect world I'd pull the engine, install top hat liners and use unicorn lard to lubricate a set of brand new ARP studs but sadly I'm not in that world yet!
If the driver's side goes, that'll get done on its own too. The engine first started a very slight ticking years ago - in fact Marty noticed it when we (he) did the Heater Matrix. If that was the start of this issue then it took a looong time before it finally blew out the rest of the HG.
I had ticking noise for years on my P38 which was always put down to a tappet but perhaps it was an indication that my head gasket was failing.