The candidate who best qualifies for that distinction is Chuck Hagel (pro-gun, anti-McCain Feingold, right on Iraq, and pro-tax cut) but I suspect that conservatives are so wedded to nation building and Wilsonianism that they will never give him a second look.
Never happen. The sad fact of the matter is that the so-called "Religious Right" are actually Democrats at heart, and I don't mean that in a derogatory sense. They're staunchly values conservatives, but fiscally moderate-to-liberal. Their party abandoned them as the political center is continually redefined to the left, just as the Republican party has abandoned small-government conservatives who are more socially moderate.