[Reece]

With an isolation transformer, you just plug your power cord from your Maggie into the transformer and then the transformer into the wall receptacle. You don't have to modify your amplifier if you don't want to. The isolation transformer can be "outboard". There is probably room inside the Maggie cabinet to mount the transformer. Some isolation transfomers may be intended for hard wiring rather than plug-in applications.

Rather than remove the speakers and speaker boards from the cabinet, you are going to have better sound by leaving them in there the way they are. Speakers need acoustic isolation between the front and back of the cone in order to produce bass notes, and generally speaking, the longer the acoustic path between the front and the back of the cone, the better. A speaker sitting out by itself with no baffle, or only a small board baffle, and no enclosure, won't have much bass.

I would say that these speakers aren't coaxial, which means that there is a separate tweeter mounted coaxially inside the woofer, with its own voice coil; but that they may be dual cone with either a small cone or an aluminum or hard paper dome over the center of the main cone, for the higher frequencies, but all actuated by the single main voice coil. I don't see any second voice coil connections on the speaker terminals.

Reece