Complex sentence: Israeli Aircraft Industries at Ben Gurion International Airport offered to modify Boeing 377 Stratocruisers it had with a stronger cabin floor which could handle cargo, plus a C-97 military Statocruiser tail section, which included a clamshell cargo door.
Split into simpler sentences: Israeli Aircraft Industries at Ben Gurion International Airport offered to modify Boeing 377 Stratocruisers. It had with a stronger cabin floor which could handle cargo, plus a C-97 military Statocruiser tail section, which included a clamshell cargo door.