I’ve actually done a lot of work with the Landwheels, if you check out my thread:
you can see what I ended up doing with the batteries from several. I have taken apart the Landwheel multiple times and I know how all of it works. It is a fairly simple disassembly, and the hub units easily disconnected from the baseplates. The ESC’s use the baseplate as a massive heatsink so I would be wary about removing those without providing a heatsink, but it is possible. I am using Vescs in my build but you could easily have used the normal ESC’s.
Let me know if you have any specific questions, I can probably get some pictures and stuff if you need it, or at least offer assistance.