Assuming that M1,4ADD is the Dianabol prohormone I guess it should do the work by itself since d-bol is a prety good bulker, and since you only have 160lbs just simply stack it with plenty of quality food and you won't need anything else to see yourself grow.
Now then, since you have your nolva and a AI in hand you shouldn't be worried about stacking it with other prohormone, and if you still want to do it, try something that keeps you away from water gains, some drier prohormone. P-mag dosen't seem apropriate, probably H-drol should be better since it's the dry version of P-mag and this way you would be keeping the water away. E-stane seems to be a nice ph too to stack with M1,4ADD to keep water under control. The only thing that you may think about a little is if adding another methyated compound wouldn't it make the cycle harsher to your liver, and even if with that weight you should even think about cycling it now, because if I were you I'd try to gain some more 15lbs and then think about a cycle.
