I'm thinking of sending the letters to his parents and brother during the time he'll be gone in February. I don't know what their response will be, but I am certain that once he finds out he'll be furious with me. So maybe allowing them time to absorb it and perhaps respond to me before he can respond to them might be a good idea.
I think that is a very wise idea.
Sorry for the slow response, Hoozh -- yesterday was D20's birthday, and I was slammed.