Here in FL, very few vehicles have any corrosion. It is a good place to purchase. But if you choose to do that, I'd treat it immediately.
I drove my corrosion-free 2003 Jag X-Type from FL up to NY to have a vehicle up there. I am only there occasionally and don't drive the car in the winter there. Even so, the car is "suddenly" rusting like crazy. Underneath looks awful now, whereas before it was pristine. The hood has rust in the seams! The emergency brake cable even rusted in half. The bottom line, it was a rust free older car that in 4 years time is now solidly corroded.
Thinking about your needs, I'd start with new, and use the best treatment possible. Including treating inside the doors, frame and seams. And/or purchase an Aluminum F150 with the 2.7L Ecoboost.
Reasoning: You'll get the longest usable rust-free life that way.
Additionally, I am not at all convinced used vehicles save any money. I can make the case that on a cost per mile basis, there is no significant difference when accurately comparing class of vehicle.
I drove my corrosion-free 2003 Jag X-Type from FL up to NY to have a vehicle up there. I am only there occasionally and don't drive the car in the winter there. Even so, the car is "suddenly" rusting like crazy. Underneath looks awful now, whereas before it was pristine. The hood has rust in the seams! The emergency brake cable even rusted in half. The bottom line, it was a rust free older car that in 4 years time is now solidly corroded.
Thinking about your needs, I'd start with new, and use the best treatment possible. Including treating inside the doors, frame and seams. And/or purchase an Aluminum F150 with the 2.7L Ecoboost.
Reasoning: You'll get the longest usable rust-free life that way.
Additionally, I am not at all convinced used vehicles save any money. I can make the case that on a cost per mile basis, there is no significant difference when accurately comparing class of vehicle.