Incrementing delivery date based on production time

First of all, sorry for any inconvenience in advance, I’m not even sure this is the right place to ask this.

So, to my problem:
I’m setting an online print store with woocommerce and I’d like to increment the delivery time depending on the product due to production time. Business cards can take up to 7 days to get ready, so, if the shipping estimate is 2 days, a pack of business cards would take 9 days to get delivered. Other products take less production time, so, if buying more than one product, the highest(longest?) shipping estimate would prevail on check out.

However, I couldn’t find any plugin or native feature that would help me do this. Any ideas on how can I accomplish this?

Thanks!

https://www.ads-software.com/plugins/woocommerce/