Bed Scan for DIY camper conversion

Does anyone know of a resource containing detailed schematics of the bed geometry? Like a scan or rendering of the internal dimensions

I am planning to build a sleep / storage system. I am going to DIY it and build a removable/modular skeleton from lumber. Using the corners and grooves in the bed from SMC construction process, I can create a sleeping platform between the wheel wells with storage space on either side that is self secured with some half decent joinery and cut-to-fit woodworking. However, none of the bed walls are a flat plane — there are (pretty aggressive) curves moving up from floor to the top of bed rails, variance in width moving from the cab to the tailgate, etc.

So, I am hoping that someone can give me a document or any other help / experienced advice on the project plan / process before I go through the effort of scribing the bed using cardboard and sharpie just to have a ‘meh’ result. Thanks from new tundra owner first post

 

Not sure where you are? There are handheld LiDAR sensors that can scan anything.
Check scanning survey in search engine. I know, our company uses them. We scanned
an airplane interior to fit a camera sensor.
Or just get a pad of graph paper and measuring tape, cause that’s what I’d do.