I tried this:

Interestingly, the harmala precipitate disappears from the water. However the EA because a thick nasty emulsion. I added NaCl and NaOH (which can degraded EA over time) and the emulsion broke up eventually, but the FB residue didn't dissolve completely (admittedly there could also be impurities), it floated in the EA and stayed away from the water.

The emulsion was hard to work with, to me it doesn't seem like this proposed shortcut is less work.