Hey mate,
i have 1&half" low king springs all round, KYB Red shocks, whiteline/selby front 24.5 mm bar, whiteline/selby 18mm rear bar.. I replaced all the bushings in the front end and rear with Noltec items. They are an australian company(i think) who stock nolathane/urethane bushings for many toyotas, including ra28s.
Im not sure of the spring rate of the heavy duty king springs. quite firm ride tho.
I plan to get my panhard rod made adjustable by some mates at an engineering shop, that is something that still needs doing when i have the money/time.
Later down the track if i ever do an engine swap with more power i might go custom coilovers on the front, with corona strut/pug. caliper/hilux 4-spot brake conversion too at the same time.