Like I mentioned in the wood steam write-up, forming the curved bed wood took about a week per board (so about 8 weeks total), so during that time I went on and did other things. Since I knew where the curved boards now fit and had the substructure (cross-braces) bolted in, I moved on to the flat boards behind the hump.
I worked the from the outside boards to the middle so the first boards I did was the ones that mounted to the bed sides. Using my typical 1x6 quarter sawn oak (actual ¾ x 5-1/2) I made some cardboard patterns and cut them out on the bandsaw to fit properly. Then I moved on the the adjacent ones. These only had a small amount of profiling that needed to done on the bandsaw. I also made sure that they aligned with the two curved boards so the bed strips would look straight when installed.
The 6 interior boards were pretty straight forward since they were simple square cut ends. I used these to figure out the proper spacing so everything was as even as possible and symmetric.
1949 Chevy Panel Truck A Project Journal I'm old but I make up for it by being immature.