60/62 floor pan rust; Rust Bullet or POR15?

[Spook50]

Pretty much it right there. Had to wirewheel a good amount of rust off my floor pans after pulling off the factory tar coating, and now I'm just wanting to find the longest lasting rust preventative to put down before I reinstall the plugs and lay down sound deadener. I still have to fix the leak that caused the rust in the first place, but since I have to order whatever I settle on, I can fix the leak in the meantime

 

[davegonz]

Check out Chassis Saver from Magnet Paints. Has good reviews and takes less prep than POR15.
Monstaliner do-it-yourself roll-on truck bed liner

 

[Spook50]

That looks like some good stuff. I might go that route.