How to: Use a microflow to export entity data into a text file and send via ftp

Wondering if someone could point me in the right direction for creating a txt file that will be sent via SFTP to a server.

Our goal is to use a microflow that will take the data from an entity and create a text file that will be sent via ftp.

I'm new to the tool and was wondering if anyone has done this and what steps they used.

Here is what I outlined but seem to find myself struggling. Any thoughts or recommendations would be great.

I downloaded SFTP module and plan to customize the IVK_Upload module (from the SFTP module)  to create the txt file from the entity where the data resides.

Steps:

1. Retrieve the entity (from data model)
2. Build a string of the data
3. Use the StringToFile to create a file
4. Thinking I have to convert or create a system document from this
5. Then I assume that once the file (doc) is created that I can SFTP.JA_SendDocument