How to manage different weight units at the product varition level in WooCommerce?

Referencing this particular question: How to manage different weight units at the product level in WooCommerce?

I have a question in regards to adding something similar to this coding.

How would I get it to apply to the individual variations on a product? Bonus if it gets the weight to appear according to selection on the invoice as well.

(https://i.sstatic.net/JpESdTF2.png)

— Product Example — I am offering two versions of the same product but one is Standard Edition (weighs 13oz) and the other is a Special Edition (weighs 1lb 6oz because of bonus material). I want to be able to display those weights in the different weights (lbs & oz).

I tried the suggestion in the referenced post but am unsure how to get it to appear under the individual variations.