Both the spindles and the lower ball joints can be swapped side to side, together or independantly. If you swap the ball joints to put the rack in the front, you will not only eliminate the ackerman geometry but you will reverse it, which will make the car a real bear to deal with in a turn. Ackerman is the layout that allows the inner tire on a turn to be at a sharper angle than the outer tire. A good comparison of no ackerman in the front is like driving a car with a spool in the rear end. It can be done, but it is uncomfortable. This is not a modification I've ever seen receommended by anyone.

The safest bet is to leave it in the rear steering configuration. However, then you have oil pan interference and turn radius issues.