Twelve weeks of limpingl without machines?

Hey, i was reading some of the back issues of t-mag and came across Ian King’s 12 weeks to super strength and limping workouts and decided to give them a shot. the one problem is that the only time i have to workout is 5 the morning, and since there are no gyms open that early near me i workout at home. i have about 500lbs of free weights to go with my olympic barbells, dumbbells, and chin up bar. i was wondering if substituting free weight exercises for exercises that require machines (ie bent over rows for seated rows) would be acceptable or if i wouldn’t get the same training effect. anyone who has tried the 12 week programs without machines, i would appreciate your input.
thanks t-men