Repair it!
I think you can get the front chassis members off der Franzose or possibly Melun Retro Passion. The way the bottom corner of the bonnet has been lifted up suggests front chassis member will be bent beyond repair. However, if you have a garage/space, the first step is dismantling the wreck. Then you can easily assess what requires to be done.
I have a bodywork repair manual that gives you all the information for the repair and the relevant diagonal measurements that you need, free to borrow for as long as you need it. Suspension parts should be available, given the R4's just put on this site a few weeks ago. If not I am sure someone in France will pick you one up. I am due to driving through in February and March next year, and intend to pick some bits up in passing. New after market wings and bonnet available off the shelf. As your windscreen is intact, I am sure only the front end needs working on.
It just take a little time, but not that difficult. Important to bolt everything together with some simple jig if one has to weld a new chassis member in place.