1992 - 1995 Cavalier has exact same taper/pin dimensions to the one in the Sierra TCA. I used it on a previous project years ago
though it would require a slight redesign of the lower wishbone.
As for hand reaming the taper I'm guessing the hand reamer has the same 14°taper as the ball joint but how can the hand reamer be accurately controlled to prevent it 'wobbling' as you ream? I didn't think this type of tool was for reaming such a deep hole with required level of accuracy.
I thought it was for de-burring holes and providing 'lead' in to holes