10' x 30' Banner = 300 sqft.
HP Scitex prints up to 65 sqm (701 sqft) per hour, up to 10.5' wide.
Calculated time to print 300sqft. = 26 minutes.
Scitex was a Tel Aviv company before being acquired by HP, so these should be relatively available in that part of the world.
If Hezbollywood has artists on staff at local printing companies, then the quick production of this banner, regardless of the "faking" of Qana is entirely possible.