Oddly enough Lu, had this same situation develop at KSFO years ago in a B707 enroute from PHNL.
I diverted to KSMF, as this was the company designated alternate for handling/refueling.
The expected hold at OSI was 1hr30min...ugh!
Still had to buy however. We had no INS, only Bendix doppler and a navigator, and I had bet the guy a fish dinner at Fishermans Wharf that he could not get within 5nm of BEBOP, then the oceanic gateway.
Radar fix was at 2nm....I never bet against navigators again,
ever. 