Off topic: but Mopar

D5B8480E-DAB9-4390-AA74-AEFAB1628ED8.jpeg So I have a 1998 Dodge Ram. 90k miles and really a decent truck. I have replaced inner and outer rockers and cab corners.
So now I want to pull the bed, remove everything from the frame and sandblast it all and coat it with something durable. What would be recommended to coat the bare metal with. I want this truck to outlast me.