You lads, with your feedback have been great!
Laverdakeith made 2 pertinent points. 1, Odyssey batteries, which I have loved and used for many years, and 2, lowering centre of gravity. (I'm developing well, my gut just keeps getting lower....)
I'm looking at removing the original battery case floor (8 spot welds), relocating the breather pipe, dropping the back shocks off and lifting the wheel to measure the possible height of that 25*6 in the swingarm, and having a case made to suit the pc680 to drop it down just above the current height of the bottom of the existing battery case. ( lets face it new technology is there, and smaller, but I will assemble for an odyssey. I have a smaller ssb in a guzzi at the moment that does 415 cca, but like Laverdakeith states, longevity...
Then, I can use the existing strap and hinge to hold another box above the battery for my girl's toys when we travel...
I'm looking at using thin aluminium rather than stainless.
Whadya reckon?
Regards
Greg