Hi Jens,
It is difficult to tell from that photo. It seems the front and rear plastics will need replacing and I am sure you know that if the tyres are original and you want to ride it, they will probably be hardened and have to go immediately too. I got caught buying a 78CR250 from photos which seem to compliment the bike usually. Not sure where you are but in Aus that bike if it is in fairly good shape as this one seems to be, I think it would bring something between AUD3.5-4K unrestored. Spend another 1K+ on it and you have a race bike. I have one of these and it is a fantastic bike, a classic from that era.
Having another look, maybe more like 4K, maybe more. It is very original. Good luck.
BTW, if you need someone to ship it for you, I know a reliable guy.