Yes, the airframe is very robust...
Brick outhouse comes to mind.
I remember that Dee Howard proposal. At the time, rumour had it he had been talked out of further development by Gulfstream. A Tay-engined 1-11 would have made the G3 look very unattractive for corporate operators.
A small anecdote about the Spey. My late friend Eric Appleton of RR loved the engine, but he allowed it was Rolls-Royce's greatest momument for turning expensive petroleum products into noise.
