As I stated before my question is aimed at those Gnostics who do practice sacraments.
That's fine. Sacraments are an orthodox practice. Gnostics were not orthodox. They were all but destroyed and their books burned by the orthodox (catholic ideology). Which make the Nag Hammadi finds so important.
The word "gnostic" is as globally redefined as the word "Christian". In the end, words mean nothing. Knowledge everything.
Gnostic:
Names given to the worldly are very deceptive, for they divert our thoughts from what is correct to what is incorrect. Thus one who hears the word "God" does not perceive what is correct, but perceives what is incorrect. So also with "the Father" and "the Son" and "the Holy Spirit" and "life" and "light" and "resurrection" and "the Church (Ekklesia)" and all the rest - people do not perceive what is correct but they perceive what is incorrect, unless they have come to know what is correct. The names which are heard are in the world [...] deceive. If they were in the Aeon (eternal realm), they would at no time be used as names in the world. Nor were they set among worldly things. They have an end in the Aeon.- Gospel of Philip
But truth brought names into existence in the world for our sakes, because it is not possible to learn it (truth) without these names. Truth is one single thing; it is many things and for our sakes to teach about this one thing in love through many things. The rulers (archons) wanted to deceive man, since they saw that he had a kinship with those that are truly good. They took the name of those that are good and gave it to those that are not good, so that through the names they might deceive him and bind them to those that are not good. And afterward, what a favor they do for them! They make them be removed from those that are not good and place them among those that are good. These things they knew, for they wanted to take the free man and make him a slave to them forever.- Gospel of Philip
And the Eucharist:
Gnostic:
Some are afraid lest they rise naked. Because of this they wish to rise in the flesh, and they do not know that it is those who wear the flesh who are naked. It is those who [...] to unclothe themselves who are not naked. "Flesh and blood shall not inherit the kingdom of God" (1 Co 15:50). What is this which will not inherit? This which is on us. But what is this, too, which will inherit? It is that which belongs to Jesus and his blood. Because of this he said "He who shall not eat my flesh and drink my blood has not life in him" (Jn 6:53). What is it? His flesh is the word, and his blood is the Holy Spirit. He who has received these has food and he has drink and clothing. I find fault with the others who say that it will not rise. Then both of them are at fault. You say that the flesh will not rise. But tell me what will rise, that we may honor you. You say the Spirit in the flesh, and it is also this light in the flesh. (But) this too is a matter which is in the flesh, for whatever you shall say, you say nothing outside the flesh. It is necessary to rise in this flesh, since everything exists in it. In this world, those who put on garments are better than the garments. In the Kingdom of Heaven, the garments are better than those that put them on.
Gnostics sought knowledge of the Spirit, not physical/flesh. IOW, wafers and wine do nothing (spiritually). But people feel good doing as the priests teach.
It's all in where you get your knowledge and what is revealed to you.