In the Audi A4 B5 models, are the 2.8L strut/springs compatible with 1.8t ?

I'm diggin through the junkyard, and i need springs BAD! my car sags horribly on the right side, and i think the springs may be worn from my running through a ditch and bending both right side rims. i need to replace all the springs, but i might as well take from a doner car and do all 4.

thanks!