Hi Stephan, first, very sorry to hear about the landing accident.
I had a QB fuselage, so didn't build all the parts related to the gear towers. Based on a quick look at the drawings, I would say it will be much easier to repair if you can flip it - are the wings off now? If the wings are on, it's a harder decision, since that's quite a bit of work to remove them. Whatever happens, please take care to ensure that the aircraft is stable - lots of solid sawhorses, weight on the tail, etc.
Take care, and good luck.