I could do that... I'm pretty good at soldering - being a radio tech and all...Put the pre only in the Hill ! Or wire it without installing it. Play it a bit and see if its what you like. If not swap it back out. Easy to solder a couple of wires. 10 min maybe? You'll know in the first 15 min. Either way.
Just not sure if I wanna mod one of the best basses I've ever had... just to find out what someone else may have already tried, ya know?
If I was absolutely sure that's the pre I wanted, I would have no problems installing it - mentally or mechanically.
it would look like a stock OEM install when finished, too.
