I have the Yamaha G50 midi system w/synth modules etc. Great for the studio but a pain in the arse to haul around live.
Save yourself a lot of trouble and do the following with pedals. It won't sound exactly like the Taurus pedals ( I had some in the early eighties) but it's close. More importantly it feels like an analog synth in the band
played live. Don't get picky and sit alone in your room at home and say,
"It doesn't sound exactly like em". Take your pedals out to the gig and
play them with real people. You'll have a blast, and I promise no one in
the audience will know the difference.
1. Get a good digital octaver that's low latency.
Boss OC3, EHX Micro Pog etc.
2. Follow that with a Fuzz or distortion. Big Muff, Fulldrive, etc.
3. Then a simple chorus.
Blend your octaver around 50/50 and set your other pedals to taste.
Gain stage them so your signal is not much hotter than your bass alone.
( Watch your speaker cones, the octaver can really make em work with those low frequencies)
If you go with Boss pedals which can be had used everywhere, you can
get the job done for under $200 cables and all.
Good luck and have fun with your portable monster "synth bass tone".
Rick