Given that the crew had put themselves between a rock and a hard place, would it have been possible to set up a v/s of 800'/min on the A/P, keep vor/loc coupled and come down to 200' to try and get visual? Given the performance of a Westwind I imagine that a go-around would have been successful from a low altitude. They seemed to have persisted with VOR approaches to the minimum even though they had been told that the cloud base was 200'.