The more experienced and knowledgeable posters on here endeavor to keep the standard of advice in the forum as high as possible.
Whilst I don't question for a moment that your intentions when offering advice were honorable, the OP had ignored the newbie posting rules, hasn't read the stickies and clearly doesn't have a good idea of what he is using.
Sustanon needs to be injected every other day to maintain stable levels of the proprionate ester and minimize side effects, and the deca needs to be discontinued-I can't remember exactly when because I don't use it, but I think- two weeks before the end of the cycle so as recovery is not impeded.
Tamoxifen won't protect him from progesterone induced gyno from the deca, like adex will- and yes, he needs clomid or nolva (I preferred clomid but everyone seems to favor nolva nowadays) for PCT which he did not mention.
A good rule of thumb I believe is 2:1 test to deca, but like I sad I've never used it so can't really say, though the OP sounds inexperienced so likely has no idea how he will react to the deca, and if he has no idea, you don't either, which is why its best for him to prepare for every contingency like potential libido problems from prolactin, which were also not mentioned.
Anyway, good luck OP, you already seem to be in full swing so let us know how you get on...