Camshaft/belt failure

[LeBaguette]

Hi all. A friend at work here in Sweden was planning to go home in his Berlingo the other day. It wouln't start and I helped him to locate the problem: The cambelt was broken. He asked at the local garage if they could replace it (It's a 1.9 DW8 Diesel) they said they'd have to remove the cylinder head to see if the valves are still alive. I removed the rocker cover and found that the camshaft is stuck in what was once a pushrod. The pushrod has turned into a jigsaw. I was advised at a Swedish forum to just get a new camshaft and pushrods and everything would be okay again. Do you think the valves could still be in working order after a failure like this?