Hi,
I would suggest giving qRules a try. It has a command called SubmitToSharePointList which allows you to submit items from your repeating table to any list in your SharePoint site. You can even update existing SharePoint list items directly from your InfoPath form. Here's a quick demo video showing how it works.
You can then configure your form so that it submits to your SharePoint library after it has submitted the list items.
Let us know if you encounter any issues during your trial and we'd be happy to help.
Best Regards,