I think we maybe ought to drop this discussion at this point and wait for some real-world reports; I suspect that Apple will come up with something when the skata starts hitting the fan.
We can only hope and pray and prey.
I think it's about time the ball got bounced back to your court, grelber...
You started this thread to find out "how would I create a bootable install disk," and we've now established that Apple has stranded you north of the 49th with neither roadside assistance nor a spare tire (or, for dk's benefit, any manner of substitute therefor), so I think it's time for you to get on the horn to Apple and spearhead the campaign to see what can be gotten out of them.
I know for sure that I neither have to script you nor explain the benefits of escalating to higher authorities.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire