Understand that this should not be taken definitively or used as the final transaction. Rather, I took a(n incomplete) version of John's spreadsheet, copied it, and generated the proper sendmany transaction such that all he had to do was copy a formula to a cell, drag-copy it to the rest of the cells, and copy another formula to generate the sendmany. It was just to illustrate that it was possible (and quite easy). It was not meant to be the final version. You should look to John's linked spreadsheet (or anything else he links) as final. This was just to help him. He may choose to use it or he may choose to go another route. It's ultimately up to him.