For your 2001 you can buy anything from the 97 up catalog..So just shop from the 2005 up Gxp for struts. And yes oem delcos for the FE3
You just missed some guys selling Bilsteins. Otherwise those things, at this point would cost over a grand just for struts.
I have FE3 sport suspension in front with the GXP rear Bilsteins on SSC(Canuck motorsport springs).
I do have my stock springs yet if IIRC they are all the same.
I can look for the part numbers tomorrow as I am in bed and on the phone.
My reasoning also with the car for my son.