Apple Pro Speakers Mod

Not sure if this would be the right place to post this but I have a pair of the Apple Pro Speakers (from the c2000s iMac G4) that I wanted to mod. I was thinking I could put full range drivers into them to use as tiny portable speakers with a bluetooth amp. The original drivers were secured to a lip via 3 screws. I measured the OD of the original driver at 57.6mm, the OD of the cutout lip at 55.4mm, and the ID of the cutout lip at 52mm. I found these Tang Band drivers that look like they could just press-fit into the cutout but I'm not sure if that would be ideal. Any ideas or recommendations would be very helpful. I'd like to keep from having to modify the enclosures too much.
 
It makes no sense to me to take the 35mm drivers out of the crystal sphere.

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If you want a set of the drivers i can probably mail you a pair (i jabe a few of the original JBL and lots of the later Foster variation.

The amp is poor — a very early Class D. I chaned the speaker wire and use a better amplifier.

dave