Will Acetic Acid in Vinegar bind with Choline, or Choline Bitartrate
to form AcetylCholine (ACH) ?  If yes, provide the conversion data as
best able to to verify it can and/or does.

Yes, this certainly can happen. In the body it is by Acetyl-CoA
(enzymatic), but you could synthesize the molecule using a simple
fischer esterification with an acid catalyst. Hope that helps!

I forgot to mention, you'd also have to heat the rxn up to make it go
faster, and the by-product is water.

Thanks,

   I am not sure if I see a way to send the $5 to you, through
answers.google.com, looks as if it's 'expired ?' ...

   Happy to hear that, in a way.   I was reading something from Hobson
where he said during REM - the brain is flooded with ACH, and oddly
Seretonin is nowhere to be found.   Curiously, I was thinking, ok,
here is choline, or bitrartrate from local health food store, and here
is vinegar, with Acetyc acid, anyway...

   I did indeed ponder if loading up on Choline might enhance
dreaming, and I have found systematically that lecithin, although
typically 80% less choline than by extraction, it has some 10 fold
absorption.  Regardless, I'll have to explore this a bit more now.   
Worst case scenario,  dream state will be a bit too realistic.  
Strangest experience I had with it was 4 layers to dreaming, each time
I awoke, I was convinced THAT was the wake state, up to the last.   I
pondered that experience for some time. :)