Glad to hear you're fine. Sorry the '97 is not!
I only have O.T. comments to offer, aside from encouraging what Luis and RoverRideAlong said above if it's practical at all and the thing is not bent ... I have a '96 and really isn't the repair cost for that vintage almost always going to be more than the dwindling book value? (In other words wouldn't "totaling" a new Escalade take one heck of a lot more damage than totaling a vehicle whose book trade-in value is rapidly approaching negative before the accident anyway?)
So anyway... curious what speed this was at and how the cab survived in terms of crumple. I live out in L.A. and over the past 10 years have seen a couple rollovers of big, expensive SUVs that weren't Rovers ... on Pacific Coast Highway... probably a 20-40 zone at the time considering traffic. And in both cases the things were upside down with NO cab left, flat down to the doors. Before I bought my old Disco I looked around at various offroading sites and saw plenty of Rovers dropped off small cliffs and turned over, etc., and saw none of that flat-cat business.
As an aside, I think it's really uncool that the U.S. safety administration has looked at propensity for rollover without ramping up actual rollover crash testing as much as it could've. There's a lot of 'interpretation' needed if anyone looks at crash test ratings on their face. So much unaccounted for.