Thanx @ presure2; I also put a request in GT4OC
@doGGy:
I've got de 1.8 steering rack/box, but it doesn't fit on the subframe. The space between the mounting eyes is bigger on the GT and GT4, it also got stronger arms.
see photo: (Top RHD GT4 super strut below the ST1.8)

And I don't want to weld on the subframe, because It's not allowed in the Neterlands and the ST1.8 steering rack/box can have less force.
About the climate control it's no problem. You need to get everything of the front(dash,heater, ect). Ill mounted every thing of the LHD Celica under the dash and used some of the JDM RHD parts for the insides, like the wiring and the sensors. You can use both JDM RHD servo's the move the valves, only on de big opening valve of the heater you need to attach a bar to make the move right. Than you have the real working JDM climate control
Good luck with your conver, if you have any questions just ask!!