I bought this from here a few years ago and used it in a couple of bands at uni but it's lying dormant at the moment so I thought I'd pass it on. I believe it's a prototype/one off Alan at Bassix made while working on something else - if not a one off it's certainly about as close as you can get!
It is very purple, very V shaped and very eye catching. It is strung with black nylon coated electric bass strings, except for the D which is a cheap upright string as the old one broke. Sound wise it's more like a fretless than an upright, I used to run it through a fishman bass preamp to give it some more oomph.
I'd like £200, it comes with a soft case and you're welcome to come and give it a play in Sheffield.
You too could look as cool as this: