It only makes sense to spend more money than a BLTouch would cost, when the result is equal or better.
To me it would make sense investing time if it would solve a problem that exist and is not solved. TBH I don't see what unsolved problem this could solve except to work as underbed probe. ATTM I don't know of reliable underbed probe. Probing from the top, I doubt it can have smaller footprint than some piezo/bltouch/easytouch/.. sensor .. and as for precission and repeatability a simple microswitch is "good enough" so
but a real winner would be the heatsink-necklace as it has zero offset and requires less force than piezos.
I can't visualize how would this work