Damage From Blow Out

I was debating on where to post this.
We had a blow out yesterday. It damaged the wheel well, put a hole in the under side of the TM and punched into and out through the veneer of the cabinet beneath the stove. (I don't have an oven there) sucking various items out and onto the freeway.

Does anyone have a good repair for the hole (about the size of a fist) in the under belly of my TM? it seems to be just in aluminum skin, exposing the foam.

We will now have to do that wheel well mod. Thank goodness it was not on the plumbing side.

By the way, my new heavy duty mud flap just blew right off of there.
I am not a happy camper.
Cheri

PS
The tires were at 50 PSI. We had been driving with a completely empty trailer on cruise control at 60mph for about 4 hours and the tires are 1.5 years old.