What would you recommend?

What would your recommendation be for deal with the rust on this truck bed? Looks worse than it is. It’s all surface rust. Want to get it cleaned up and then do the paint bed liner from LMC.

What would your recommendation be for deal with the rust on this truck bed? Looks worse than it is. It’s all surface rust. Want to get it cleaned up and then do the paint bed liner from LMC.