You might try posting this in one of the modder's forums:
Experiments with equipment
Atomizer Mods
Not sure of exactly what you are thinking of, but there is a big difference between a regular carto coil assembly and an e2. You would need to get
juice to wicks from the outside compartment to the carto filler. Without the filler it might fire up, but it will be running dry. I can't see this working (and you would need a cutting tool to remove the carto insides), but who knows, you might create something new and good! But without more back and forth Q&A, which you might get in those forums, its very hard to see how this would work.