How did you manage to find 64 bit versions of all the dependencies?
I was trying to build 64 bit binaries for the original MO ages ago because some Fallout NV mod installer needed 64 bit Java, but I couldn't find 64 bit libs for anything.
I'm not sure if this is common knowledge, but Mod Organizer's source is available on SourceForge. Now, SourceForge has been doing some shady stuff recently, so I'm wondering if the Mod Organizer devs plan to move their sources to another site.
Windows 10 users might want to know that adding the "-laaexe FalloutMO.exe" argument was all it took to get the game to launch through FNV4GB for me. It even uses FalloutMO.exe and loads NVSE!