Thanks for the kind thoughts guys, I am pleased to say that it does look repairable. It won't be 100% as it was, but it will be 98% okay and some artful work with pigments will hide the rest of the damage.
It was a very hard thing to deal with - I had to just walk away for several hours before I could even bare to look at the damage too closely. basically what had happened was almost all the supports that were attaching the bar armour to the hull were broken and at least one bracket has been lost to the carpet monster. However, all were repairable and the lost one wasn't a major load bearing support and is not very obvious so I'm going to leave it missing. One bar strip on the front left corner has gone missing and will need to be replaced, but all the other breakages were repairable.
Its drying now and the finishing touches will be added tomorrow and I'll attempt to photograph it again. This time I will make sure everything is fastened down...