I hope you guys find one. I've looked for one, but all I could find were "Harley size" and some of them required "some modification". I think that the battery size is one of the ways the mfg.s have been reducing the weight of our bikes. The battery in my '92 600 Katana is bigger than my '97 7R. All the high CCA batteries, I've found were way too big.
I put a lot of strain on my battery with 55/100w headlights, 15/50w tail lights and most of all, my Gerbing heated liners. The heated jacket and pants liners can draw up to 77w at 12 AMPS! Throw in the gloves and socks and it goes over 100w / 15a!
Their real nice and are better (and thinner) then a couple layers of insulated underwear under my leathers. I've thought about having my alternator rewound, but couldn't find anyone, locally, I'd trust. Now, they say the 12R has a generator instead of an alternator (I don't know the difference). I just hope it has a higher output than my 7R has.
Good luck and Happy Holidays to you all!