I had my stone-damaged windscreen changed by Autoglass. They have a “Specialist Division” to deal with unusual or difficult vehicles and these were the guys who did mine.
I parked it for them on a nearby flat car park, and didn’t move the vehicle for 24 hours, on their recommendation.
This was about 6 or 8 years ago and the job has been perfect ever since .
Good luck. Please let us know how you get on with this repair.