As I understand it, coilovers (even fancy ones like BC or FA500s) ride worse than original type suspension or even new shocks/struts with lowering springs. a sweet spot for these cars seems to be (and mostly because my friend has done it to two of his cars) swift springs & bilstein b6 shocks/struts. OEM mounts and other OEM hardware of course.
rear motor mount is a necessity, and it's best to look at something still with rubber, just smaller like the
vibra-technics RMM.