I'm running stock 4 stud knuckles with marlin arms, hydro assist, and 40s. I keep everything torqued and it's been running good so far. I don't think 6 shooters are necessary right off the bat. I've been running my setup for over 3years now on factory knuckle studs too with no issues. And I would say I drive my truck easy either.
Running a higher pressure pump with factory steering isn't going to benefit you. Actually still running the factory pump.
