gb270 suspension

[DKL]

I've driven a couple of wagons and found the suspension much harder than my (then) stock wagon. Harder to the point where I haven't bought one. Changed the impreza for something else which isn't working out. Still fancy a gb270 so presumably fitting stock springs is an option to make it a bit softer?
The larger wheels/low profile tyres won't help either but they have to stay.