Buying a used MacBook Pro

The dispaly is one sealed unit. If any part is bad/damaged, the entire upper unit must be replaced. This is pricing for a used/pulled unit for the 13-inch 20127 non-Touchbar:

https://www.ifixit.com/Store/Mac/MacBook-Pro-13-Inch-Retina-Late-2016-2017-Display-Assembly/IF123-066?o=1

Not cheap, and you still do not know what else is wrong until the screen works.

Antother consideration: the seller must have followed the steps in this article to prepare the MBP for resale or you may not be able to use it even after buying a very expensive screen:

What to do before you sell, give away, or trade in your Mac - Apple Support

If the screen does not work, the seller may not have been able to accomplish this.

I cannot recommend you proceed with this purchase. In the ~20 years I've been active here I seen too many sad stories from people buying used Macs. Trying to save money on a Mac, other than at the Apple refurb site that we use all the time, too often ends in grief.

applefancb wrote:

I am considering buying a Used MacBook Pro with a display that needs to be fixed.

Does anyone know how much it would cost to fix the screen?

Apples price repair list is limited, but look here for your query:

https://support.apple.com/mac/repair/service

Apple Clearance /Refurb:

https://www.apple.com/us/shop/goto/special_deals

Other options with warranties:

https://www.refurb.me/en-us (same original warranty from Apple just as you would with a store purchase.)

OWC/MacSales is a trusted vendor all things Mac—excellent customer support/ and some limited warranty.

https://eshop.macsales.com/shop/Apple_Systems/Used/Macs_and_Tablets

Cheap because it is such a great risk to buy.

A broken screen could be the result of a fall, which could have broken much more than just the screen. Some of these other issues could take time to find, even if Genius Bar found just the screen this time around.

Buy a used one from Apple's "Refurbished and Clearance" list (bottom of the home page, small print). Those come with Apple's 1 year warranty and can add AppleCare+.

These are just the plain facts.