The Supermassive is definitely your best option for the thicker, darker tone of the BKP92.
The BKP92 did use 42AWG coil wire, but switching up to 43AWG for the Supermassive brought the overall coil size down and, in combination with its slightly oversized Alnico v magnets, that tightened up the low end response somewhat, with a bit more punch through the midrange, without brightening up those thicker highs.
