Teisco pickups are usually pretty good. The rocker switches are less so.
I'd find an old dud bass & bung that lot on but, as mentioned, locating the missing bits could be a little difficult as it'd be around 40 years old AND the price for such instruments is skyhigh at present.
This link is to a similar (better) model & the price is ridiculous: Teisco DelRay Shark-Fin EB-220 KB-2 Bass1960s Vintage & Rare | eBay
Not really. The stripes and rocker switches are a total Teisco giveaway, but I've never used that particular one.
Jap made, can be really quirky if that's what you like. Most Teiscos can still be had fairly cheap. There's a Tulip that's been floating around my local CL for months now for $175. Build quality is typical 60s Jap/Matsumoku- bolt-on necks, fretboards hit or miss but can be very nice if you get a good one, pickups range from mediocre to unusable. But they look cool. Always wanted a Kimberly.