Personally, I'd probably just go over to Napa. Ive seen a bunch of kits with parts missing and I would rather have the complete set rather then be missing a cap or something you wont be able to find by itself.
To determine if its oversize you will need to disasseble the front end and pull out the old kingpins. You need to check the holes/bushings in the axle for wear or distortion to determine if the pins have worked their way through the bushings and buggered up the axle itself.
Jeff
