Shock absorber leaks after 56,000 km

Hello, during the last inspection it was found that the rear right shock absorber is leaking and there oil leaks (in the initial stage). My Mondeo is now 2 1/2 years old and has 56,000 km on it. I bought it almost exactly 2 years ago with 18.500 km as a remarketing vehicle. Since my factory warranty expired in March 06, I hoped that it will be repaired via the remarketing guarantee. But that unfortunately clearly excludes shock absorbers from the warranty! Now I have The prices are for 2 shock absorbers incl. installation. What makes me very surprised is that the ATU and PitStop are the most expensive ones! And the Ford workshop doesn’t cut so fast at all. I’m not sure that the prices are for 2 shock absorbers incl. installation. What makes me very surprised is that the ATU and PitStop are the most expensive ones! And the Ford workshop doesn’t cut so fast at all. Tell me, what would you take for shock absorbers: Monroe or Sachs? Greetings to Pharaoh