To use Torah as a teacher is what we should do yes. That in no way is saying we must keep ever detail of it. As it seems you understand this, I won't get into the details of pointing out ever passage in Torah. I am sure you understand that there many laws that are for these people that don't fit with others, like the laws for the Priest that work in the Temple, don't fit for the average person. Can we agree on that with out going into every detail on it?I mean, "It says here, 'have no other gods...', etc, and Torah defines good and evil, and Jesus followed the Law, and said He didn't come to do away with the Law, but to fulfill It, so why wouldn't I use the Torah as a guide to how I live in righteousness before God?"
also when it comes to sacrifices. The Torah is clear that they are to given only on the alter of Yahovah. As there is no Temple, the laws for this can't be followed. One must keep in mind that a gentile is not allowed into the inter court, where said sacrifices are made. that being as it is, a gentile has no means of keeping that aspect of the Torah. So it stands to reason that it doesn't apply to gentiles. Are we in agreement?