Basic solution for proper ackerman:

Draw a line from the (centered) rearend pinion through the spindle.
The outer tie rod end, front or rear steer, should be on this line.
This is why you must never, ever use stock rear steer spindles on a
front steer rack conversion.

Basic solution for bump steer:

The tie rods must be the same length, have the same pivot points as
and be parallel with the lower control arms when viewed from the
front/rear or the top/bottom. They must move in complete unbinding
concert with each other.