Please help my best friend replace his destroyed parent’s grave!

Hello everyone thankyou for giving me a chance to ask for your help!

My best friend is heartbroken. He went to visit his parents grave a few days ago only to find it completely destroyed. The head stone was gone, even the grave sides. Nothing but the grass is left to mark his parent's grave.

I want to help him get the funds together to get a new head stone. Alex (my best friend) lost his mum when he was 8 and his dad when he was 15. He was in and out of foster care, and because he has a form of dwarfism called "chondroectodermal dysplasia" if you want to find out what that is here's a link. https://www.google.co.uk/url?sa=t&source=web&rct=j...

He finds it difficult to work with metal pins in his legs/constant back pain etc. So he can't afford to replace it. I need your help! Even if it's a small amount everything helps. Thankyou.