Dht is going to raise your libido and sex drive. They're both going to lower SHBG and free up test. I think you must be thinking about 19-Nors (tren, deca). I'd be concerned with always wishing your libido was as good as its going to be with mast, winny, prop but absolutely no concern of low libido with either of the compounds at any dose.
I would skip the hcg honestly as it'll most likely do more harm than good, not that it'll do much harm, just that recovery from your stack won't really be that hard.