Agree with the guys above about the age issue. Additionally, at 180cm and 75kg, you can easily pack on a few more kgs with diet and training before taking gear. I'm 181cm and gained naturally till I hit 90kg before taking gear.
If you do follow through with this cycle against the above recommendations, I personally dont think HCG from week 1 is necessary, nor is the A-dex EOD. When I did test E, HCG wasnt needed till about week 4 and the A-dex about every 3rd or 4th day, depending on symptoms. You have to be careful you dont overdo the A-dex and crash your estrogen levels. Mind you these opinions are just based on my personal experiences and may be different for others.