Okee...
N64 roms don't have a file system, everything (executable, models, sound, etc) is just one large file (well...the n64 doesn't know anything about files...so it's just "one large rom"...whatever...). So the models are in the bin file, but all the other stuff is there as well. Because every n64 rom has it internal data stored differently (and usually compressed), there are no tools to extract data from them.
But you can try to run the .bin file in an n64 emu with a geometry dump gfx plugin
