Save yourself the time, he's probably right though I think the offensive numbers will be a bit better. Hes a transition machine so he'll get points just based on that alone.
I think a realistic hope for him is to have the impact of a prime Andy Greene. He has potential for more than that, especially offensively, but a prime Andy Greene was a legit top pair defenseman and at one point had an argument for being a top 30 guy in the league. Sadly those days are long gone though.