I covered this in another thread somewhere, but the Jaguar Baritone Custom (also called the Jaguar Bass VI Custom) was an updated version of the old Fender Bass VI and featured a 28.5" neck and used the same gauge bass VI strings. It was a hard tail version; the shape was closer to a Jag/Jazz than the originals; and it only had dual single coils. A warmoth JazzMaster with baritone neck would get you a very similar look and feel to this one. Never played one, so I don't know how flubby the low strings are. The Jerry Jones Bass VI, is 30" scale and uses a lighter guage of string than the Fenders at 24-34-44-56-72-84. That might be more useable,but the sound won't be as thick bodied.
Super Turbo, the timbre of notes at the same pitch will depend on the string guage. If they're comparable, I expect the sound will be the same. That's the route I'll be pursuing. I think a baritone will give me many more "useable" notes than a Bass VI. I found the Schecter Hellcat VI to be pretty useless when using the bottom 3 strings. The chrous/delay is definitely a prominent feature, but the Bass VI is also a signature sound in Cure songs and quite distinctive in it's own right.
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kidgloves2 , if you are having problems sourcing parts for a Bass VI build, head over to the Offset Guitar Forum. There are a number of Bass VI builds that have been covered on those boards. It's a great source of information, and they even have a parts list for that type of guitar.
Adding Jerry Jones Bass 6 pic.