You are indeed fortunate to have these two friends but be careful not to ask too much of them otherwise they might pull away. My elderly friend whom I support has a next door neighbour who has been quite helpful over a period of time but after a district nurse tried to take his number and put him down as part of my friend's support network he has noticeably pulled back and not offered to do anything since. He's a nice fellow but, understandably, didn't want to be regarded as having a responsibility towards my friend.