Again, you get hung up w/the Father HAVING to have a physical body. That is post Book of Mormon theology.
The body is not makes for divinity. A divine "substance" is not a body. In the OT, God would present Himself at times as a cloud. So now you're going to tell me you can't have divinity unless you have vapor & dust?
The book of Psalms talks about the "wings" of God. So now you're going to tell me you can't have the substance of divinity unless the divine bird is flapping?
Just because God has manifested Himself in various forms/expressions, doesn't reduce Him to the manifestation.
Just like just because the Son of God is also the son of Mary, you can't reduce him only to being the son of Mary. Jesus is the forever God-man. You're right in that He didn't shed the body post-death or post ascension. But just as He was suddenly with the disciples at one post-death appearance, implying He walked thru walls; as just as He flew through the air ascension-wise and will return the same way, He is not limited by time or space.
Col. 1:27 talks about "Christ IN you, the hope of glory." Is Christ in you, or not? Is the Christ who created you (Col. 1:16) and every being the same Christ who is in you?