That will work. I just took the entire bed off. Just needed one extra person to help lift it off and on.
Now that I know how easy my fuel pump went I will be removing the bed this summer and doing some cleaning up under there and under coating ;-)
If you have some help to lift it off, a forklift, overhead, or even a comealong...removing the bed is the way to go. Yeah, you can really clean up a lot under there.
This is when we did my son's '02: