shopify website -- 2

I am looking for an experienced Shopify developer that can help develop our checkout page. 1. Customers should able to select delivery or pick-up at the first stage of the checkout. 2. Once the customers selected what they want, the calendar should adapt to whether they selected "delivery" or "pick-up" (different cutoff time than delivery calendar). ++ If a customer selects pick up option and items in the cart are NOT tagged in Shopify as pick up => product withdrawn automatically from cart/a message saying this item can't be picked up. Thanks