Well, I have SD pickups on a couple of basses...
My slightly tweaked Ric.
and my Red Baron faker:
Coincidentally, I have a P with a Status neck; it's a bit of a Frankenstein.
Also coincidentally, going back to your J, I'm trying out a J-style pickup on a Ric base for someone this weekend!
The Columbus wasn't a bad bass, but it was quite heavy.
My next bass was a Rickenbacker 4001, which I've still got.
Amp-wise, at some point I added a shonky unbranded 4x12 and another amp (I think it was a Maine, which was quite nice, as I recall).
Well, that particular one was in a bit of a state, with the neck detaching from the body and the fingerboard coming away at the headstock end.
I have one of those in better nick.
My first setup was a Columbus Jazz bass copy into a Carlsbro Stingray and a WEM 2x15.
I had another Stingray at some point; the one with the push-buttons for tone.