wood bed finishing question

[classicchev]

If you are very careful, use a paint stripper,. I personally would remove all the wood, then use a stripper, then use a belt sander or orbital sander. Just remember the more aggressive the paper the larger the scratches will be in the wood. I would not go below 60, then 120, then finish with 150-180. After your done with the belt, bring out the paper, use 180 with a block and hand sand until you are satisfied with your boards.
What I would do and probably the easiest way is to run them through a panel sander, but not everyone has one of those in their garage.

Good luck, Darren