Got to the root of the mud. traditionally, tele neck pickups are 43awg wire in the neck and 42awg in the bridge.
The tele neck is supposed to be 0.47” tall. The stock bobbin was only 0.40 which is 15% shorter. Additionally, the bobbin wasn’t very full. On a stock tele, the bobbin should be pretty full. So, considering the 15% reduction in size along with much of the bobbin being unfilled, tells me that the cheap pickup someone threw in this likely had either 44awg or 45awg wire in it to get a resistance of 7.8k. Furthermore, the magnet rods protruded about 2/32 above the bobbin instead of being flush. All of this mean it was a weak pickup with a poor resistance to inductance ratio and a poor coil location, as it sat lower than normal. If the rods were flush I could have raised the coil another 2/32.
I rewound it with 43awg plain enamel per original spec, but came up about 1000 winds short due to filling up the small size. That said, it sound infinitely better.
My fralins come in today, and flatwork to make some legit winds myself will be in Monday.