Consensus seems to be a Mexican Fender neck on a mystery body with generally considered upgrades here and there. Might even have a better pickup than stock. I bought a Mexi burst P bass in 2000 and it had the burst and bridge shown in post 11. Definitely was a veneer on top and back. It convinced the noob me that it was a one piece body
. The saddles on the stock bridge drove me nuts because they moved all over the place over time. I ended up wiring all the saddles together with twist ties.