Seller found the club, check out the Alembic Basses & Guitars section.

Oh puuleeeze! I can't believe anyone thinks that anything ever came from Alembic with that crude level of craftsmanship.  If you will notice, it's the seller's first listing and he has craftily cut off the headstock in the one fuzzy picture that he provided. If that bass turns out to be an Alembic, I'll eat my thunderfunk (amp) on stage at Red Rocks.
 
Just my humble opinion, of course.

I'm afraid you can start eating your thunderfunk ...
 
I'll eat my Mesa if it turns out to not be an Alembic :-)
 
As mentioned above, it's a '86 Persuader with Vector body shape. F in the serial number stands for Persuader with Fender style (Vector) body, not for Further (which is a guitar)
 
My guess is that it has a Bubinga top, Elan style headstock and for electronics: Volume and Filter with fixed Q.
3 piece maple neck, Ebony fretboard with plastic ovals and brass side markers. Schaller tuners, logo without script (can be seen in picture) bird tailpiece and bridge without bridgeblock.
Did I forget anything? :-)

Aha I stand corrected!  I didn't know F = Fender - the bass in question doesn't look anything like a Fender.  Since the Alembic Showcase said F = Further, it seemed consistent with the fact that it was listed as a Jerry tribute (y'know, the Ken Kesey/Grateful Dead thing) and I quit reading.  Had I looked further, I would have seen that Spoilers could also have a F serial number.
 
And guys, instead of eating your cabs, give 'em to me!  I'll pay shipping!

I'd be scared to bid on this one. Seller will not respond to e mail questions.
Hes already stated if bid is less that $2000 he wont let it go.
Inexperienced seller or very crafty by choice.

It sold for $820 so, so much for not letting it go for less than $2,000. Did someone from the Alembic club here buy it?  If not, I guess we'll have to wait for the buyers rabid feedback on eBay. For now, my Thunderfunk (and my digestive system) will stay in tact. Just for grins though, I'd love for Mica to chime in on this one.

This bass's right-handed doppelganger just showed up on Craigslist (with a more reasonable $1500 asking price).
http://sfbay.craigslist.org/sby/msg/2272601100.html

I think that's the same bass, same mistake regarding the interpretation of an F in the serial meaning Furthur.
 
 So it is a righty?  
 
The seller showed up on another thread, I'm surprised he didn't communicate more with the group here.

Agreed. It makes me wonder.  Now there is a phone number .  Someone can tactfully  let him know, with a smile . But it won't be me.

The 2 basses are shown in 2 very different cases, also the knobs look different.

It's the same bass.  I did email back and forth with the eBay seller and the serial numbers match.
At least he was listening when I advised him to list the bass on on Craigslist.  That's a fair price and it shouldn't take him long to sell now.