Damn you! I came here to suggest some decent low priced basses and saw your post and now I'm probably going to have to buy another bass! I've always wanted a Spector bass.I went looking for a Spector for you, which is what I'd get. I found some others too.
I suggest looking at Rondo Music:
+ Check here for B Stocks https://www.rondomusic.com/camp.html
I like the Jackson JS2 bass for $249 new because it feels like a guitar. I also like Ibanez SR and Schecter Stiletto basses.
Make sure you get a bass with humbucker pickups or 2 single coil pickups that you can use at the same time to cancel hum like in a Jazz bass or else you may get a lot of noise. If you get active pickups, they're usually not too great in lower priced basses, so you may want to set the tone knobs at center and not boost anything because they may cause noise.