I have seen G80-3000 with 1.25 doubleshot ctrls, alts in white all were ISO, DE or UK layout. I was not looking for white sets at that time, so stupidly did not pick one up. They were fairly pricy though... over $100.
I actually do have a R3 centered stem ctrl key... but it is annoyingly also a 1.25 key, so looks rather odd on a modern board with space on either side. Right row, wrong size is super annoying.