My 2 cents and it may be hard to get as well. Aerial survey is where it's at for the low time guy. As much as I say that I love freight dogs, I bow down and tremble at the knees to aerial survey pilots. Short of getting shot at in the military, I can thing of nothing more difficult than that as a pilot. That being said, there's only a handful of companies out there that do nationwide survey work and are very competitive to get.
After 700 hours of CFIing, I felt no better than the 250 hour students that were finishing up. Aerial survey will get you hours AND experience. I literally value NOTHING from those 700 hours as a CFI. Absolutely nothing. Which is a lot of the reason why I talk so much smack about the "normal" path to "success". To be honest, that survey flying(what I did at least) is WAY more difficult than anything the freight world will throw at you. From an operational stand point at the very least. Sure, the Metro(and many other airplanes under the sun) can be difficult airplanes, but ADM is a cake walk compared to ADM in a 172. If you can handle survey flying safely, legally, and efficiently. Nothing in the civilian world will ever be a challenge. For better or for worse... @
z987k may or may not agree.
My opinion is based on my experience as a CFI, aerial survey pilot, and piston single/multi and turbine freight flying.