Hi,
I think the problem with separately installation of the mods with JSGME is, that every mod changes a file, which was changed by another mod (or will be changed). And the result is, that it is not working.
The cargo and fuel tanks(for the UH-1) changes the same files, that is the reason, why I put everything together in one mod.
Tell me what mods do you want to use, and I will merge them together.