Chris, a lot of things can contribute to bump steer. Bump steer isn't just the relationship of the up and down motion of the suspension translating into toe-in and tow-out. It is also that force that seems to just about rip the steering wheel out of your hand when you hit an uneven area of the road while going straight or in a turn. Managing these reactions can be addressed in a number of ways. First we need to know all of the specifics of your front suspension. Whether you are using manual or power steering and the position of the steering rack. Did you use offset bushings to mount the rack? If power steering, are you using the rack extenders supplied by FFR? A bump steer kit may help and should fit behind the 15" wheels but the 95 spindles you have should also be a good fit. The SAI mod will also be an option you can explore. While I applaud the interest your front end guy has, the bump steer can not be determined by just looking at the parts. Have him set you up with a good basic alignment with the parts you already have and see where it is as far as bump steer.