Hi Matt - If you can get a remote variable speed control down there, I would put the fixed speed in the table with the remote speed control, otherwise, I would go with your plan. Personally, I would be inclined to try to swap off the fixed speed for a lighter router to use for hand held work, but that's just me.
Not familiar enough with the Router Raizer to make to educated a call on it. From what I've read, seems like the table would be the right place for it but don't know how it would work with your fold down arrangement. I think you are still dropping the table down, I don't recall a thread otherwise.
The problem with experience is I usually get it immediately after I need it.