Hmmm... Surgery like that on the boom is a bit more than I'm prepared to tackle atm. I'll inspect the boom carefully for signs of fatigue in the area of that bail and ask at the club if we either have any riggers amongst the membership (I'm betting we do) or if the club has a relationship with a local rigger, and have them inspect it. I have to find a rigger, anyway, as my aft port lower shroud has a couple busted strands and needs replacement.
Providing nobody comes up with any show-stopper comments regarding the latest (Harken) components we've selected, I'll order them this weekend and get 'em on their way.
Thanks again for your help, KeelHaulin, and everybody else.