I am interested in this as well. There are certainly some projects and situations where it could be better to do this sort of thing yourself. Now I am pretty sure that the famous playing card designer Jackson Robinson has posted on another forum about how he sometimes did his own tuck box assembly. I am not sure he gave any detail in what I read though. I think at one point he was also printing his own tuck boxes on his own printing press, but I got the impression he was talking about assembling tuck boxes that he had not printed, or giving advice to others to do this. Could be misremembering though. And I certainly don't remember anything about the type of glue. My instinct would be to use diluted PVA, and that you would need some sort of form (solid template) to have inside the box for the moment of gluing. But yes I would be interested to hear from others with experience.