Your points are important, but the fatal flaw is her lack of record, and the fact that her record (what little exists) is not particularly Conservative... As with all politicians, what she DOES is more important than what she SAYS she will do.
With that as the focus, one can then get to the meat of the issue... Those things which she has done (or said) which directly oppose long held, unmovable principles of the various Conservative factions.
Immigration
Windfall Profits tax (oops, I mean fees)
LIFE being a states issue.
All three of these (her most important flaws) are absolutes which must be violated in order to vote for Palin.
That will cause contenders to rise up in the primaries... factionally pure candidates which will split the Conservative vote, and allow another “UP! the Middle” usurper to gain the crown, in exactly the same fashion that MaCain’t and others have already proven.
Far better to invest in a candidate which can honor all three factions basic unmovable principles. One whom all three can vote for with a clean conscience.
DeMint, Pence...
I don’t see questioning Palin as a conservative. You can look at the 60 some odd candidates she supported. Conservatives almost all, and many of them long shots. Regarding immigration, at the beginning of her 1st Alaska show she says she supports the fence. I just don’t buy that there is a question there as to her conservatism.