If you want to get a nice bulking stack together with Deca, go with Domestic Supply. I would run the Deca anywhere from 300 to 400 mg a week. That is the sweet spot.
Make sure you take these multivitamins and see how you feel on them. A lot of people say it helps them with energy, and it also can help with recovery.
Masteron is a good option. A good thing about Domestic Supply is they have excellent Masteron options. Not only do they have blends, but they have both prop and E available.