WTF are you talking about??? SHisui arranged for his last eye to be hidden with itachi... he wanted it to seem as though he destroyed them and erased his EXISTENCE... He did not mention any conflict over his body, just his eyes kal... SO why after his eye's were gone and he supposedly off himself... why was his body missing and every other remnant of him?
You are trying to make it as though shisui knew he would be Edo'ed... yet the jutsu was not even complete back then... it was just anothe rincomplete jutsu back then so why would he prepare to not be edo'ed when he knew nothing of the jutsu and how it worked because it was not finished yet by Oro????