But as it is not the real spelling of Gods name in hebrew anyway (as it was spelled by the Highpriest)
What the F*** are you talking about! The "Highpriest" would pronounce it outloud once a year in public, it has nothing to do with him spelling it out. The four Hebrew letters are Yod-He-Waw-He. Most of the time in the early copies now extant the Masoretes pointed it with the Eh and Ah, as in the vowels of Shema, not Adonay.
These four consonants are "matres lectionis" (mothers of reading) and can act as vowels sounds "Yod" for EE or EH, "He" for EH or AH, and "Waw" for Oh or OO.
As Josephus (who was writing in Greek) said the name is pronounced according to its vowels.
= Ee, Eh, Oh, Ah.
Hebrew has breathing sounds, like our H, the Greeks thought of that as an accent.
From Hebrew "YeHoWaH" we get the Latin "IeHoUaH" which with the later consonant script form of the letter I, and the U/V split, became "JeHoVaH" in more modern ecclesiastical Latin.
The later pointing that appears in the Tetragram isn't what Martin, the Catholic Monk, used, because the vowels aren't the same in YeHoWaH and aDoNai, not even eLoHiM.
BTW, I have an Ed.D. in Literacy. I have studied Hebrew and Greek in post-grad studies, and I'm a polyglot to boot.