Don't get me wrong, it's a great cycle and you'll get fantastic results. But I'd be alittle more cautious and go with a lower dose of Deca 200 - 300mgs/week. You don't know how prone you are to progesterone gyno, and if it turns out you are, you can't do a thing to stop it.
BTW - With a similar background to yours my first cycle was 200mgs/week of Deca for 10 weeks. Gained an amazing<for me> 10lbs and was very happy with the cycle.