You might like to include this verse, not in the DT version.
When we went to Florence we had a lovely time,
We ran a bus to Rimini right through the Gothic Line,
Next to Bolognia we will go,
In the afternoon we'll cross the Po,
We are...

I don't sing the Lady Astor verse. I think it makes more of an impact to go straight from the jokey verses to the final verse. A brief intro can set the context.
Just for the ride,
Keith.