New Display ... I dropped it

I have a Microsoft Surface Model 1645. I broke the display and need to replace it. What is the proper display and do you offer one? If so, what is your part no. and what is the cost? The old one has a part no. LTL 108CL01-001. I'm confused, is this a 10.8 or 12 inch display? It measures 12 inches diagonally, however all the literature says its 10.8 inches. The part no. on it suggests it's 10.8 inches.