Since I got my speedometer working and I'm waiting on some other parts to arrive, I decided to pull the bed and start evaluating the frame and how much sanding, grinding and restoration will be required.
Pulling the existing bed was actually a lot of fun. I used a SawzAll on most of the bolts and drilled the tops out of the others. A couple of hours later me and my two boys just lifted the wood bed out with the three cross-members attached.
Tomorrow I'll power wash all the dirt off and start evaluating the rust, which is more than I thought on the side panels in particular.
Ritchie's Bed Replacement