I would not add the black patent, that is more of a burnt coffee note. Fine for stouts, but not what you are looking for. Brown malt, Biscuit, Victory and Munich will all give you nutty/toasty. 6 oz. is a good number & the gravity is fine for a nut brown.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk