Worth a try.
Lot of interesting stuff out there on quartal harmony. Got some reading to do. About time I learned how to use the chord wheel counterclockwise!
Just found this:
http://www.chorderator.com/ You need to know the names of the quartal chords (e.g., Em7add11), but this might work. There's also a Scalerator page (linked from Chorderator), but that didn't appear to be useful for your purpose, unless one of the modal key selections works.