From my own experiences.
First off dont worry about those leaves .
You mention this
sorry - the plants were received at my place july 6th - so 2 weeks ago
they had been in full sun, 30+ c for 9 days now
Unless i read post wrong -
So you had them in full sun for 9 days ?
What im trying to say if you had them in full sun for 9 days and they could not handle it you would be talking about how there dead. After second day they would have no longer been standing erect.
If thats the case leave them in full sun.