User inputs Postcode - Box returns Postage method to select

Hi guys, nice and simple, I have 3 types of postage rates that i want my customer to select. Local, National and remote location. I have a spreadsheet of all Australian post codes that say which of these 3 that they are. I have all of them uploaded to a data sheet column (There’s nearly 20000 rows).

How can i have my customer enter their post code then get a return on what postage to select.

Simplest way would probably be for the user to choose either Local, National or Remote from a dropdown or radio button choice and then simply query the users post code against your dataset for that postcode from within the selected choice.

Either that, or get the user to input their post code that gives them a list of similar postcodes as they type etc, then when the final post code is entered or selected, you can give the user a choice of the prices shown as radio buttons for each of the three locations.

How can we do that in Wix?