I'm 6'4/205 with skinny arms and a decent gut. I've been lifting recently, but with only dumb bells. I wanted to get going with the 5x5 stronglifts, but I have tendonosis in both my knees so squatting/deadlifting heavy is not really an option, at least for now. Plus the gym I go to is crowded as hell, so the benches and squat racks are always taken. And I have no one to spot me.

What's a workout I could feasibly do to get big? I've got protein and creatine, but I know I have to put in legit work as well to see gains.