I really appreciate the advice. I went to visit my grandma today and just got home, but did a lot of thinking while I was driving. I'd pretty much decided to take the Arizona position, and it was wonderful to get all this amazing advice affirming that. Sometimes I feel a little funny to come here about things like this (and then post in the wrong section-- sorry, still getting used to the forum changes from the summer) but there are many intelligent ladies here that I look up to and have much more experience in these matters-- unfortunately most of the other people I'm close too aren't much help with professional-type advice.
Cinnamon, I think you make excellent points about what an applicants popularity and unwillingness to wait forever can do for an organizations desire to hire.
Jayne and Suz-- thanks, I have let them know but unfortunately they still haven't been able to firm something up-- there are some other factors at play (contractors defaulting, a budgeting switch) but it was worth a try!
Jenava-- excellent point about what the other job may lead to--- the museum situation here is difficult because the woman I consider my "boss" has been going to bat to help me out, but we keep getting tangled up in higher ups and bureaucracy, but I'm beginning to feel taken advantage of.
Sylvie-- again, great points about perhaps encouraging the museum, going where the pay is, and what the new opportunity may lead to.
Rachylou--- thank you-- this is exactly what I am going to do---- I'm letting them know I'm unavailable for "x" period because of this other job but that when I'm back I'm seriously interested in the position and continual volunteer work. Still hard to leave the family and my "baby", but it has been too long.
BJ--- thanks for being very honest and for your experience with hiring. I was apparently the top of one of the top choice applicants for this job and have paid internship experience in the past, so getting repeatedly strung around doing the same job is frustrating, this might push me through or be more useful elsewhere.
You all are amazing!