Shopify Developer - Bundle check out based on weight criteria -- 2

Hello,

I'm looking for an app or developers who can help me create an option on my website www.proteincountry.com to do the following:

Build a custom 10lbs or 30lbs case of product.

The concept behind my store is to buy bulk and save.

I do not want to make available single products for sale.

Each product has a standard net weight, this feature should only allow the customer to add to cart when they reach the 10lbs or 30lbs minimum. The price would also be fixed per item based on which case they choose to build and shipping and taxes would be included in the price. The units of measure for the weights should be in lbs and ounces.

Here is a good reply from a forum where a developer shared his knowledge:
1. Need to create a collection.

2. Add products that you want to sell.

3. Then the logic came - we put the restriction on add to cart. Only works when a customers select product with weight 10lbs or 30 or more lbs.



4. Here is the reference - https://bellavitaorganic.com/products/self-love-kit.

I'm looking for something just like this but with criteria being weight not quantity.

Please let me know if you need any other information.

I'm looking forward to your feedback.

Thanks

Matt