The only problem with the flying checks suggestion that Flex has is that most of those operations will be single pilot 135 companies. Meaning that you'll need to find a way to build time up to that magical 1200 total for part 135 IFR mins.

I agree with being a CFI, then again I'm biased. It's amazing how well versed you become in the mechanics of flying and how much better you get when you're teaching it. I'm in that "the more I learn, the less I know" sentiment that was echoed earlier. Getting paid to build time isn't such a bad deal either.