Should I get a 5 fretted or 6 string fretless (For Playing Primus)

[Dante Minardi]

I've been a big fan of Primus for a while and I know quite a few songs on the 4 string fretted but now I am looking to upgrade. I'm now stuck with the decision of whether I should get a 5 string fretted or 6 string fretless. I also play in a band where we don't play much primus but more classic rock and pop stuff, so would a 5 string fretted be enough to get by on, or should i venture out of my comfort zone with the 6 fretless?

Here are the basses I'm considering
5 string fretted:
https://www.thomannmusic.com/harley_benton_mb_5_sb_deluxe_series.htm?ref=prod_rel_361464_21
6 string fretless:
https://www.thomannmusic.com/harley_benton_b_650fl_bk_progressive_series.htm

 

[Watchootognbout]

I'll just leave this here!
$871.14
TUNE Hatsun TWB63NF-WG - 6 String Fretless Bass - Wenge - Black Hardware

 

[Rojd]

I'll just leave this here!
$871.14
TUNE Hatsun TWB63NF-WG - 6 String Fretless Bass - Wenge - Black Hardware
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This certainly has my interest. I'm looking for a 6-string fretless and am also considering the Ibanez SRF706. Does anyone have one of these Tune Hatsun 6 String Fretless Basses? I'd love to hear some feedback on them.

 

[Darth Moley]

I haven't played one, but from what I understand all of the 6-string fretless on Sailing the Seas of Cheese is actually played on a Tune bass - Les didn't get the Carl Thompson in time to do the album, so one of the guys working on the album brought in the Tune. Don't know what model, or if it was modified, but that is what I've read!