To sum it up, 1 episode's AR usually takes 3~4 hours and is arranged in 1 day. 1 ep ≈ 1 day, 5 days & 65% ≈ 5 eps / 65% ≈ 7.69 eps. That's an estimate, and if they arrange a whole day for just AR and no DB ( a full day in AR), the total length will at least double (300 mins+