Samsung UE55KU6100WXXH TV: Seeking Affordable Matrix Replacement Options

Hello. I have a Samsung UE55KU6100WXXH TV with a damaged matrix. Replacing the matrix on the website is not profitable.
My question, are there any cheaper matrix substitutes for such TVs? Thank you.

And what matrix was in this model?

This is a TV with 3840x2160 (4K UHD) matrix
Since the TV model was 899 EUR and a flat matrix model (UE55KU6100) link
How much can the matrix be?
* new is at least 75% of the TV price
* outside the service / purchase of a used one is approx. 45-50%

Dies for Samsung models from 2016 described on link

Average price 55 * matrixes (ebay, with 2nd hand): 300 ? + delivery
Here you have a good company from the island Link_ offer
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In LG 55 "
LC550VQF-FHF1 UHD 55.0INCH 3840X2160 500CD COLOR 72% 16/9 1400: 1 120Hz Inverter N LED 3D (FPR) - LG Display Co., Ltd.
* 3D and Curved
* F - 120 Hz + FC -> 240 Hz (T) Trumoution (also: actual frequency matrix 120 Hz + off the backlight with a frequency of 120 Hz).