Ron, with that little roasted malt, you're going to have more of an imperial porter than a RIS. You need a lot more roast to stand up to the load of malt you have in there.
Otherwise, the grist looks rather familiar
5 min hallertau looks out of place.
don't think you'll get much out of separating the 60 and 75 min additions - I'd just combine them.
might want to use 3 packs of US-05 or use fresh slurry instead.