damn man, how many questions you got? its pretty straight forward. i used some 3/4" plate drops to make the d-ring tabs and ive already said that its just under 2 ft of 2x4 for each mount. you could MAYBE use 3" wide plate, it wont stick out as far but should still work with some creativity. IIRC the top plate, center sections, and the backsides on the wings are the only thing over 3" wide.