Okay. Hear me out.
So you know how billys champion form always looks like his dad?
We all say its because he idolizes and sees his dad as a hero?
What if its actually his dads body and he doesn't know it.
Like the gods could make a body out of magic for him, but his subconscious already had THE perfect template and so they just nab his dads body from shortly after he died, add a shit ton of magic, make him buff as hell, and then make him a bit taller.
But he has some of the wounds from when the cave was coming down, his hand looks broken from where he was holding Marilyn's right before they died, there is a scar under his eye where his glasses cut into his face, and if the suit ever was damaged or came off they would be able to see shrapnel and gun shots and blood pooling under the skin from where his ribs would have broken.
And all of it is gold, like his very blood has been changed to be divine, the parts of him that were damaged now looks like golden scars. But they bleed when cap gets upset.
And the JL are so very worried when the back of caps suit gets damaged and it looks like he should be dead from internal bleeding alone based on what would have been deep purple to black bruising all along his back and side.
Of course billy cant see it and dosent really suspect that his body is his dads. Just that it looks and smells like his old cologne, secretly a perfume that marilyn loved, full of burnt marshmello, toasting wood and vanilla. and brings him comfort.