A C-130 would be much easier to modify.
Ran the calculations under post 69, it possible, but allot of things have to go right.
“A C-130 would be much easier to modify.”
Probably so. But it’s ceiling is 33K feet; whereas a 777 is at least 43K, probably more if inclined to tinker with the engines.
That said, I was literally just thinking outside the box of the B-2. Israel has had a lot of time and inclination to modify or make something. And they are preparers.
My bet is there is a big ass stealthy-ish drone with a 60K ceiling that can drop this bomb. Iranian SAMS can hit (theoretically) 89K feet, so my assumption is a massive, broad based, attack would occur at the same time to make sure they don’t have any SAMSs in reserve.