I agree, but to remain consistent with logic in the Calvinist position, it had to be the will of God for Adam to sin.
That is simply not true. When God created free will He created the potential for contrary choice, but he also created it in connection with full disclosure of the consequences and man being fully accountable for contrary choice. So indirectly, God is the author of sin, in the sense that God created the mechanism necessary for sin to exist (free will) but God did so without accountability for contrary choice as he made those with free choice accountable for their actions.
Sin originated from "good." No, you did not misread what I said. Sin originated from "good." When God finished creating he pronounced all things not just "good" but "very good." He could never have said that if evil had existed prior to the seventh day of creation. Hence, nothing but "good" and "very good" existed in creation.
A rationalization for how sin is derived from good may go like this; God created man to love Eve and to be sexually attracted and bonded to Eve so that he would forfeit his own life to preserve hers. Eve came directly from the hand of God and so had to be the most beautiful woman that has ever existed. In turn, Adam came directly from God and had to be the most attractive man that has ever existed. the natural magnatism between the two must have been enormous. God made them that way and that is "good." However, when Eve sinned Adam was forced to make a choice between love for God and love for Eve. He chose willfully to rather die with Eve than live without her. The sin was not love for Eve but loving Eve more than God.
Satan was made to glorfiy God as that is what angels are made to do. It was not sin to be like God. Indeed, we are commanded to be imitators of God (Eph. 5:1). To excel to be "like" God is "good." However, it became evil when he chose to excel not only to be "like" God but to the point of replacing God and thus becoming the object of glorification instead of God. The bible says that sin was "found" in Lucifer, rather than originating with God. Sin was derived from what is essentially "good" but distorted to an extreme that is not good. Now, I merely provided a rationalization.