A bit more searching seems to suggest that this is a Protégé AP–4, an MDS- era instrument, which means that it has all of the basic MIDI capability of the newest Allen organs. As such, it would be perfect as a Hauptwerk 2-manual console. Here are the specs and some pictures: http://www.jnelson.com/allen-protege-ap-4/. As you can see, the California dealer wants $7,900 for that one which includes a MIDI Division II. If I were in the vicinity, I would be snapping this up for the benefit of fellow organists looking for an affordable in-home instrument.