https://images.graph.cool/v1/cj6c28vh912680101ozc2paxj/ck167...
One of the sections of falsework is being hoisted in the picture. Note the custom metal lifting attachment designed to fit it.
The supports are a nice piece of work, but routine. Now, restoring the damaged decorative stonework, that will require craftmanship and hand labor.
Please, no. Restore it to before the spire, or with the spire, either is fine.
But please please no modern monstrosity that will age about as well as La Cité Radieuse...
The Berlin Reichstag is one often-cited example of successful combination of old and new: https://www.google.com/search?q=reichstag&client=safari&rls=...