Best Ecommerce site for many customizations

We are currently using Shopify, but run into a few issues. Shopify doesn't allow over 100 variants and that is an issue for us. We are not like most companies and over-charge them for freight, we cut our boxes down and so our cost is based off of weight and dimensions. We get discounts from our shipping companies and we pass those discounts along to our customers. That is why we don't charge a flat rate shipping price up front because we don't want our customers to be over paying for...

Best Ecommerce site for many customizations WordPress ...