First off, an all oral-first cycle is a horrible idea. I don't even think anyone should ever do an oral only cycle.
Second, the fat burning properties of both trenbolone and winstrol are far overblown. The only real benefit in my opinion is in those who are sub-10%BF. If your 20% body fat, tren and winstrol are going to conbtribute nothing to your weight loss.
I'd take Stone's advice here and put your focus on diet and cardio. There's no easy way to do it.