Goy (which means nation) is spelled גוי
Most Hebrew prepositions are just prefixes that attach to words.The prefix לֽ־ (leh) = "to" or "for"The prefix מ־ (meh or sometimes pronounced mee) = "from"
Hebrew does not have a word for "have". "I have" would be יש לי (yesh li) which literally means "there (is) to me".
The Hebrew word for "the" is a prefix ה (ha) that attaches to the noun it modifies. It is the same for both masculine and feminine nouns.
It would depend on how you pronounce ״Kunz״, but my best guess is "koonz". Based on that, (reading from right to left) it would be spelled ג׳ין קונז