1G Suspension help 1G Mitsubishi Eclipse

[Redongreenon]

Hi all, I just bought the above car, but I don't know much about them as yet. However clearly the rear shocks and coils are knackered based on what happens in speedbumps! Can anyone recommend what I need to buy e.g. What brand, what size, etc etc. I'm a beginner!
Also I am in Spain, so ordering in from the US is a pain!

 

[1990TSIAWDTALON]

GS, GST or GSX?

 

[Redongreenon]

It's a GS