Reliability Galant Combi and motors

Hallihallo Friends of the helping guild, I decided to turn my back on the German car manufacturers and buy a Galant Combi. What about the reliability of the cars?? What is the reliability of the engine? 2.4 GDI or prefer 2.5 V6?? What are the maintenance costs, and how much can you still make on the car yourself??? Technology of the engine?? Control chain, or belts? Valve adjustment?? How much can a Galant Combi from BJ 00 with less than 100000km still cost?? Does anyone have to sell you by chance?? I am grateful for every tip, hint and suggestion!! On what should one definitely consider with the car?? rust or wear parts or the like!?!?!?!! Thank you for your help, Martin