Cant stop laughing at the ✨. 😂.
I don't know if you can graft a more temperate apple on the antonowaka and it will survive. Perhaps not but atleast you have something to work with. Also there is a weird trait about Antonowka where the apple seed is generally true to the plant aka you plant antonowka and you get a genetically smiliar apple tree.. This is generally not the case with apples so if you cant find a tree you can always buy some seeds. Hope that helps 🙂