Ok, this method leaves me stuck on a 3DS booting screen when trying to run this .cia file on another 3DS. I feel I'm missing something here.
I missed that I needed to update that other 3DS before the game would work...noob alert here.
Also while I thought Godmode9 would not work for creating .cia from eshop files, I installed hourglass9 to boot while holding down on power up. It is a very simple program, and handles the .cia creation process in a more noob friendly way. Just thought to add that. Thanks again for all your help.