Give me a break on the "pure enough" stuff. We are being offered the same liberal/"moderates" that Bush showcased in his last convention. This is a setup rather than a contest for someone who can actually represent the voters.
I don't think I can do that. Folks that call themselves conservatives do not uniformly share the same opinions, especially when it gets down to details.
Abortion is the easiest example to demonstrate that. There are those who believe human life begins at conception and must be protected at all costs. The GOP platform opposes abortion except in cases of rape, incest, and life of the mother. Other conservatives are tolerant of it if it occurs before the embryo starts developing brain cells. And some are tolerant of it up until birth, I guess.
No matter what your view on abortion is, you're not going to represent all conservatives.
And that's just one issue.
You can't find the perfect candidate who represents all your views unless you run yourself. So run yourself, and see if you represent the voters.