Hi EngineerIt,
The factory is capable of making a matching cabinet door. They made affordable drawer fronts for a project of mine
DETAILS HERE. Give them the dimensions, the wood species, and the finish of your PC interior. They can easily make a flush panel like for a drawer face. A panel door might be more difficult to get just right for such a small door, but you never know. It is sure worth asking Carol at Phoenix. A door front, two hinges and a cabinet knob, pop-out the old insert, and you have direct access. Or have the factory make a complete drawer for you.
Personally I like the cabinet door instead of a drawer because the drawer itself reduces the volume of available interior space. It also likes to open if loaded heavy while hitting a bad bump while steering through a curve in the road. That is why I later added button latches to each drawer of our "max volume 3 kitchen galley drawer" project. Keep that in-mind.
Being new found space "on the floor" looks good for placing some of your heavier items like your tool box, bottle jack, and related....a nice "Emergency" cabinet. Located just forward of the rear axle is also good for load distribution between axles.