Just find a Septuagint.
THere was a translation recently done by the OCA Church with the help of some of the scholastics in translation from many of the other Orthodox Churches, like the GOA and the Antiochians, russians, etc. that is known as the LXX Project. It was completed last year.
It is decent, but like everything outside of the original language still loses some of the meaning from the original text.
Shellfish. If you are neither Hebrew or Jewish, enjoy the shellfish. The only "Law" anyone outside of Hebrew Law that matters to you is the Noahide Law.
The Noahide Laws are:
do not murder,
Do not steal,
no adultery or incest or bestiality or homosexual intercourse,
do not blaspheme Gods name and do not eat the flesh of an animal while it is still alive(which includes not partaking of the blood).
Last but not least, set up a system to enforce these laws among your own kind.
The Hebrew Laws are void to you. Genesis 9:4-6 is the actual text for the Noahide Laws given in Scripture. The Talmud teaches the rest.