Change Legacy landing gear?

Hello, I have a Subaru Legacy 2,2 Automatic Combi Built 1992 with air suspension. Unfortunately, a spring leg has given up your mind. I want to upgrade the vehicle to normal chassis. Found today a similar Legacy with 1.8 engine on a scrap yard. The price for the 4 spring legs 150 €. Is it ok. Do you only need the spring legs with springs or also dome bearings or something else? Ask for quick answer. Be afraid that someone else buys the parts. Thank you.