Everything will bolt up if you have the correct parts
To Run the ae86 struts in the ke70 you will need
Ae86 struts
ae86 hubs,discs,calipers (ADM is solid disc, but JDM is vented which is better, but more expensive)
ae86 steering arms. (power steering arms give you more lock but slightly heavier steering)
To change the inserts you undo the glandnut(at the top of the strut body) and swap them over. The spring will sit on the spring seat and you put it all back together, only one way.
this setup should do
Wheel alignment should be something like this for hard driven daily
2-2.5 degrees of camber
0mm toe
caster rods wound out to max
to adjust the camber you will need some ae86 camber tops and they replace the standard strut top in your ke70.
hope this help