He wants to come home....HELP!

[praying_in_GA]

So, I have been reading up on Retrouvaille. There are 5 up coming dates for my area ranging form Jan 2010 to Oct 2010. When would I know we have reached a point where I could bring this up to him? The kids have only spent 1 night away from us their entire lives so I would have to work on that first. I'm not sure he would go, but he is willing to go to MC so maybe?