Couple of important things to look at are, when you
have the suspension at curb height, is the rack level
with the steering arms... thats very important. You
also want the inner tie rod pivot to be in the same
plane as the inner lower control arm pivot... these
2 things minimize toe change during suspension travel
EDIT
On the length, just cut it shorter and re thread it,
but do that later when you have everything in the
proper location, will the tie rods be on top or bottom
of the steering arms