Ian,
Thats realy bad news mate - hope you both OK and over the shock. Apart from the airbags, what panel damage etc is there? These cars often get written off uneccessarily due to ridiculouse repair quotes from main dealers, There is a great deal that can be done to put a car right. Speak to Jon Town, in this forum known as The bodyman he is an expert repairer of broken sports cars and can advise you on a way forward.
Good luck!
Steve