SPASM + X73 SPRINGS

hi im interested in putting the x73 springs on my sport pasm 718.

i was wondering if it was going to lower it another 10mm?

WOULD you go with the x73 sways instead of the gt3 sway bar?

where did you purchase your x73 springs?

how would you rate your setup to a nice aftermarket coilover?

I read someone did it on the 981 just want to make sure it fits the 718

thanks in advance!