[jefrs]

GFS do something like these 'Vintage Split Pole' about 8K, which sound authentic. I could not find genuine Fender WR either. This one is cheap enough that you could use it for parts. With it fitted it would be difficult to make measurements accurate enough for engineering work. The strings do pass directly over the poles on the 07 AmSer. The unit went straight into a stock pickguard, note single dog-ears. I've only made pickups from odd bits like re-winding big solenoids onto a bar magnet, so good luck with your project.