Should I leave the Fuel Tank in the Cab?

[Kokomoooo]

Putting mine under the bed. My Dad constantly moaned about my gas tank being in the cab, I found out a couple weeks ago after I told him that I'm reloacting it that he saw two people burn to death in a chevy truck like mine.

As far as drivers air bag, I would if I knew how, but I am considering putting a roll bar behind the seat for side impact protection, and adding a 5 point harness.