A mono F2-B replica?  Quite weird.
 
http://cgi.ebay.com/Alembic-F-2B-Tube-Preamp-Custom-Replica-Low-Reserve_W0QQitemZ7358789065QQcategoryZ10171QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

That's been on ebay before!
 
I remember because the seller was touting how the knobs came off various Les Pauls, Strats or whatever...
 
EffClef

hmm . . . if that was the end result of scavenging some guitars, maybe they should have been left alone . . . lol.

I'm with Kevin. Leave that turkey alone!  
 
Either FX pre-amps are a whopping $850MSRP. Some discounting can be had and nice used ones are always floating around.
 
As such, why buy a copy and not the original?Especially not an ugly, trashed, home-made one, LOL!  
 
You get what you pay for.
 
Cheers,
 
Kevin