Commerce modules

Great that the Commerce module for Backdrop CMS is now available! That has been the main reason holding me back from finally switching to Backdrop CMS.

However, a few things are still missing to use it effectively.

For example, the ability to provide an invoice as a PDF both for download and to send it via email. This is a legal requirement for me. Under Drupal, I used the Commerce Billy and Commerce Billy Mail packages for this.

Additionally, the Commerce License and Commerce Node Checkout packages.

Is there any chance that these will also be ported to Backdrop CMS? That would be great!