KE70/AE71 have a stronger chassi to work with, in my opinion, my ke70 springs just need to be a little stiffer, and a tad lower just to cancel a fair bit of my body roll. nick can vouch for the body roll my car gets with its f@$ked suspension, i even believe matt may have a picture of my excessive body roll when cornering.. it was great when all my suspension was new though..
i'm looking into a similar set up as paul, RA65 struts with adjustable coilovers, going to need the bigger brakes with my engine conversion when i do it.