Scrkpr,
I'm sure they'll find a way to get your son in the club. Our club had two young members like him though they were a bit older when they joined. One is now heading up the design team for the Thirty Meter Telescope after being the head of the Optics Team that designed the two Gemini scopes. The other was one of the principal investigators involved in Deep Impact and a professor of planetary geology at Brown University. He's much seen on PBS and Discovery science shows.

We love to encourage young like him! They usually go far in life in whatever field they go into. Most keep astronomy a hobby if not a profession.

And I agree on the choice of a Starblast (The dob mounted one as the EQ one is a complication a kid doesn't need). It is normally aimed at an older kid but it would be a great match for him. In a few years a larger Dob might be better when he can set it and reach the eyepiece without dad's help. He needs one he can haul out himself. It may be a bit big and will need your help for a bit but he soon should handle the Starblast on his own. He likely needs to do as much as possible on his own but will want dad's constant interest to talk astronomy with as I doubt his friends will be as hooked as he is. He'll soon be making "major discoveries" he'll want to share with you. I just hope your back can take bending over all the time to share the view with him.

Rick