Shopify Customisation Project

We are looking for a shopify liquid code expert. We need to update the code in our existing template to combine products on the product, collection and brand pages. Shopify has a limit of 100 variants per product. We have some products with 300+ variants. So we have now split these products into smaller products with 100 variants each. E.g. a product with 251 variants will be split into 3 products. What we need is when a customer goes on any of the split products, it will show all the sizes and colours for all the parents available for the customer to buy. We also need the products to show only once on the collection and brand pages and not 3 duplicate products. We have added the shared id into the product meta fields. If this is something you can do or have already done then please get in touch. If we like your work we will give you more work.