I echo what Jack says. I’d say that you can invest in a high quality acoustic pre-amp like the Stanley Clarke one from EBS. It’s reassuringly well built and simple to use (if you read the instructions, which I didn’t at the start!)
I honestly think a little Elf head and combo would be ideal.
I can speak with some confidence as I also play a Bryant bass (as well as the aluminium one above), and it has been loud enough for pub gigs with lots of players.
Assuming you’re nowhere near Bristol, but if you are, I’d happily show you what I use.