How can I track inventory for individual and case sales on Shopify?

[rawrations]

I have recently migrated from WooCommerce to Shopify and struggling to accommodate a situation that we had in Woo. We currently use Lightspeed as our POS system so all of our inventory lives there and is integrated over. We offer products by cases and individuals but need the inventory tracked for cases even when individuals are sold. 

Scenario: 

A customer can purchase cans (1) Individual 12 oz (2) 24 Pack 12 oz Cans (3) XL 6 Pack

-We need this to display as 1 product to the customer even though it's technically 3

-We need inventory to continue to track on all three scenarios

-The "house" product needs to display as it's own product, it can't be a recommended or add-on situation

Any ideas are appreciated. I've tried dozens of apps with no success.  

[MastersHub]

There is a way to group products. Are you a developer?

[rawrations]

No I am not, just a pretty knowledgeable store owner. 

[MastersHub]

You can solve this issue in 2 ways.

1. Finding an app that works for you. I took a quick look. I found one. Maybe it'll be useful. The name of the application is “
“Simple Bundles & Kits”

2. Having a special app made for yourself. You can get this done by hiring a Shopify developer. The advantage of doing this is that everything happens in its own way. Of course, some budget is required.