The only Gaplus cabs I've seen all look like the CL ad one. I've got one, I know of one locally converted to Galaga 3 (just a ROM swap to change the title screen), and even the Gaplus flyers have the same cab. Mine has a different (but similar) CPO than the originals though. Mine's in pretty decent shape, and the one in that CL ad looks better than mine (at least from what I can see...could have damage at the bottom, since you can't see the bottom of the cab)
$2500?!??!? You've got to be kidding. That thing better be NIB from the factory for that price Mine was listed at $250, and I talked him down to $225 because it was missing the coin mechs and needed new t-molding. Was that the one in Bethany CT? I did a google search for Gaplus on craigslist.org and saw that in the search, but when I clicked on it, it's long gone.