Caravan Tüv , so far without registration

Hello I probably need proper help. I have bought a caravan with tüv report and valid gas acceptance. Tüv is taken off according to paragraph 29 The letter and bill is all present, however I am the first owner, so No owner registered. Now I wanted to allow the car, which of course did not work The lady from the registration was very overwhelmed and also alone there. With many requests (friends, workshops, and further) I got answer. I must sste make a new pickup , I definitely need new axles because of the new brakes , I would like to keep the car now also so time to finally start driving , Can someone give me advice ??