You won't gain anything off DC. If you don't train legs and don't care enough about your endocrine system to even research how to obtain a SERM, then I am confident you won't have the motivation to even READ everything about DC training, much less to bring the intensity to each workout that it requires to gain, and I'm pretty sure you would laugh if someone told you what kind of volume DC incorporates, especially if you're spending 3-4 hours in the gym. Get on a NORMAL split.
Mon - chest, tri's
Tues - back, bi's
Thurs - Shoulders, abs
Fri - Legs
I won't touch on the steroid issue, but I would suggest googling "research chemical nolvadex".