Ive seen a few guys carrying fuel containers that look to be the same size of the Gobi hard case's. There red, flat, look to be about 4" thick who gots em???
Get the locking hardware, it's secures the can better with less clamping pressure. I think it's only $10.00 more and worth it imo.
That looks like a Kolpin Jr. can. I prefer the Kolpin at 1.5 gal. and more square to the rotor pax, 1 gal.and more rectangular. Max