For me, the bass should provide what it provides in the otherwise acoustic song by Leonard Cohen: "So Long MaryAnn." Very punchy without spoiling the mix.
On the other side of the spectrum there is James Lomenzo who has played with Ozzie, Megadeth and others. The guy has a copyright on the word, 'punch.'
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To the guy looking for a bassman. Were I there, I'd talk to you - despite the (I suspect) unwitting insult in the way you phrased your request for a bass player.
i get it. I've done that. Sometimes you just have to fit in fast as hell to make some money. I had to have sheet music to play 'Alphie' and 'Mahogany' in a bullshit band I worked for a few months. I got paid though.
Band didn't work out. They failed their audition.
The key is to get the job done. It's sort of an audition for pay. If you can pull it together quickly for the show, then you can probably work together with the guys on orginal stuff as well.
Good luck with your music
Talbot