It is never an overkill with a PCT, as it will allow you to keep the gains made on cycle, will prevent fat accumulation, and will make it easier to restore natural testosterone recovery. If you don't run a proper PCT it will be very stressful for your body to recovery the HPTA function, and after the cycle you will have a very hard time working out. Unfortunately, most bodybuilders prefer to invest all the money in the steroids, and forget that what matters the most are the gains kept after the cycle, not made on cycle.
Regarding the dosages, as follows:
Week 1-2: 2 Week Pre-PCT Kickstart
Some natty test booster
Week 3-7: 5 Week PCT
Clomid – 50/50/25/25/12.5
Nolvadex – 40/20/20/20/10
Aromasin – week 1-2: 12.5mgs EOD, week 3-4: 7.5mgs EOD
Ostarine (MK-2866) – 25/25/25/12.5
Liver supporting supplement
NOTE: Dosages are PER DAY, example Clomid 50/50/25/25/12.5, means Week 1 you take 50mgs/day, Week 2 50mgs/day and so on.