I am working on an alternative fuel system for my final school research. I am applying it to the 737-800. Now I could not find info on how the internals are situated. Of course pictures of the cabin are widely available. However I am looking for drawings, pictures or graphs on the cargo compartment, systems placement like gear, hydraulics, pumps or whatever. Basically the whole internal volume and what it is occupied by.
This is maybe a bit demanding but any info is really helpful.