"Cannons"? I ask this as I am carrying around 10 cannon balls and they are classified as ammo and do not carry the weight penalty or display what the recycle break down is.
I tried moving those ghouls and was successful until they came back. LOL What I do now is after a battle, I then remove the bodies. If I had known then that I could remove bodies I would have done it immediately. The ash piles are there to stay.
One of the settlements I cleared out I took the bodies to the river and gave them a toss. They just stayed there, in the water, not going with the current. But I did find out that even though they are dead they still produce loot. LOL