WIY: I’m not a posek, (surely not if I found out I’m a non-Jew!), so it appears. No, a non Jew can bring a Korban anywhere, it should preferably be with all brand-new utensils. There’s a gemarah somewhere about it, if I’m not mistaken.
DaMoshe: I’m writing about something a non-Jew can do – but not a Jew. Jews are also included in those seven.
One more thing, DaMoshe, you write that a non Jew who follows the seven laws and leads a good life can also get a share in the next world. Yes that is true. BUT IT DOES NOT COMPARE TO ONE HOUR OF LIVING A JEWISH LIFE, here on this world. ??? ??? ??? ?????? ?????? ????? ????? ???, ??? ??? ????? ???. How much more so in the afterlife. No, not comparable. – ??????? ?? ????? ??? ???? ?????!!
That is actually a message we should strive to internalize. How precious and dear it is TO US, to HaShem, every minute we as Jews spend on doing Mitzvohs, Torah, teshuva, maasim tovim. Actually the life lived as a Jew in itself is so important. So important, it allows for desecrating Shabbos, just to prolong a Jewish life (even if unable to perform any mitzvhos).