i am local to you, but I would not want to risk welding it purely as should my weld fail for whatever reason and you come to any harm I wouldn't be able to cope with the knowledge of that.
As someone suggested you could get one machined at probably a cheaper price than a replacement part and it be a more sound part than the original i'd expect
EDIT: Also my issue here
Get a part machined? What does that mean? Machine a part ready to be welded?