30 lbs is a lot of weight. No way you'll be able to gain that as all muscle, no matter what you take. And keep in mind that the weight is going to slow you down. I wouldn't want to add tren because it will really mess of your cardio ability. That stuff will wind you, just walking up a flight of stairs. Dbol is going to kick your strength into high gear. So is the test. For long term use, deca would be good for adding mass and increasing strength, combined with your test and dbol. 400mg ew. If you want a milder compound, EQ at 500mg will help with the mass, plus incresae endurance. It will also help with strength to a lesser degree. The gains won't be as dramatic as with deca, but personally, I prefer it. Deca creates more water retention, thus more weight. I opt to stay a little drier and go for real muscle gain.
I would also lower the dbol to 30mg and for your situation, run it for at least 6 wks