1/2" is pushing limits in regards to how much leeway margin there will be when setting the intonation.
Doing a neck swap would complicate things. You would need a well tooled Luthier for that, so that it fits
right in the body's neck pocket.
Plus,... whatever you put the electronics in, the tone and overall sound will be different. Especially since
the PRS body is a mahogany/maple combo and the 89F is all mahogany body. So in some bodies it's more
noticeable, in other bodies not as much. Body acoustics are part of the modeling process.
You would have to find a way to fit the 89F bridge in the PRS body (another job for the Luthier) in order to
use the piezos, as they are matched for the inputs of the processor board (hence the colored connectors).
It can be done. Care and intimate knowledge are required. Not for the faint of heart. Carlos Rios who plays
for Stevie Nicks has two examples of successful transplants into SG copies, as SG bodies are symmetrical,
they can be wired for a lefty player like Carlos. And yes, I've had the honor and pleasure of having them on
my bench. Mr Taggert does good work, though I did some mods and repairs to the electronics.