I don't think that would be too tricky for a decent body shop. A couple of years ago, my Familia was hit by a car and the rear RHS was caved in. The frame wasn't bent, but the bodywork and light cluster were wrecked. The first body shop I went to took it on no problem and done a great job, even though the aluminium is ridiculously thin. All in, with the new rear lights and plastic mount trim thing was around the £1600 mark if I remember, all done through insurance. The bent frame would obviously be the most difficult part, but surely that could be pulled out?