Hi Loo,
Did you ever get to Utah? Sounds like you have been diligently doing lots of research over the years, so I would imagine that you eventually made the trip? I went a couple years ago - solo - and it was wonderful. A bit overwhelming at first, but I did manage to find lots of microfilms of BMD records that applied to my ancestors.
*Bring a notebook and carefully record every search and film# that you look at, because there is so much good information that the rabbit trails multiply so fast and before you know it, you don't know where you've been or where you're going to next!