Hi @Cthomas1 ,
This is Ellie. My recommendation is to use BOGOS (formally Free Gifts by Secomapp), # 1 Promotion App on Shopify.
With BOGOS, you can easily create multi-bundles (basic bundles and quantity breaks), and customize content & color to match brand identity. The bundles will be displayed stacked on product page and also automatically sync with your inventory.
However, to update the page price and images like DJI, you will need a complex custom code because no third-party apps on Shopify currently support this feature.
Click here to grab a 7-day free trial before any committed charge: BOGOS.io Free gift. If you have any questions, feel free to reply.
If my answer is helpful, I would appreciate it if you could give me a Like or accept it as a Solution! 
Wish you all the best with the business 
Ellie
BOGOS (formally Free Gifts by Secomapp)