Well, if he's gonna do it no matter what-
Low Test E- 150mg/wk or less
Tren A- 100mg EOD/300-400mg/wk
Masteron- same as Tren
Anavar- 100mg/day
Exemestane- 12mg/day
He needs to get his diet straight, do HIIT cardio every single day, and train 7 days a week. But he really shouldn't be cycling anyway, not at that weight. His blood pressure is sure to be sky high, cholesterol is probably pretty bad, and aromatase is through the roof. Those things make cycling a dangerous proposition, especially for someone that's pushing 50 and out of shape.
Isn't mast only worth it when your body fat is low?