I understand your reasoning placing the battle of Ezekiel 38 & 39 before the beginning of Daniel’s 70th week. Recent events, however, have given me pause. Namely, the proposal from Qatar for the Arabs to acknowledge Israel in return for an approximate return to the pre-1967 borders. This could possibly be the starting point for the Anti-Christ’s treaty. Based upon my understanding of Scripture, I never would have thought that an Arab country would make such a proposal at this juncture. Whenever I think I have a handle on how things will work out, God throws a curve ball.
From Daniel 9:27 we learn that the anti-Christ will confirm (enforce) the seven year covenant to which you refer. Therefore, even if this proposal from Qatar gets adopted, it won’t have any prophetic value until he’s on the scene to enforce it. Also, the treaty will apparently clear the way for a Temple to be built, since by the middle of its seven year term one will have been constructed and be operable. As of now, neither Israeli nor Palestinian officials are in favor of building one. The Battle of Ezekiel 38-39 will officially bring Israel back to the Lord, making the Temple a necessity for them.