Stacking 3 steroids

This is going to be my biggest cycle yet and my fourth one
I'm 5 ft 8 in
33 years old
180 lb
Goal is to get to 190
Body fat around 15%
This is what i got planned, tell me what i can change
500mgs sustanon250
600mgs equipoise
50mgs a day proviron
12 week cycle but open to changing that