Which supplier to use for spare parts?

Hello all, I want to change the track rod head and the axial joint at my C70. The steering has a small play (right wheel) and cracks with strong impact in shunting operation. At Skandix or Polar-Parts a spare part costs 10.50 €. That speaks of course. On the other hand, swedenteile.de assumes something over 22 € (e.g. track rod head). Since I don’t want to exchange the parts again shortly after the warranty period, I wanted to ask you better about your experiences. like “Skandix Hausqualität” I like to take note of it, but this says little about longevity. Who can say anything about it? Best regards Thomas