Shopify checkout -Delivery Calendar option & DPD APP Integratio

We have a website based in Shopify, we would like an expert to tweak our website with Calendar delivery option, we would like the project to be done asap within 1 to 3 days or immediately start, so please don't bid if this is going to take longer than 3 days.

For example - if a customer order on Friday before 9 pm, the calendar delivery option will only show Saturday, Tuesday and wednesday, Thursday and Friday option and so on, we do not do delivery on Monday & Sunday.

We will also need DPD app integration