I agree whole heartily if folks knew which was exactly correct without requiring modification to work. On Mancini's site it doesn't mention anything about the KYB's needing to be modified and only states they will work with the super stock springs. Then the Imperial shocks I came across when searching the forums/boards. Again not super clear in my searching that modifying would be required as well. If I had known for sure I would have just ordered the Mopar ones right off the bat. Like so many other things I have learned so far with these older cars another lesson learned and wanted to share so hopefully others will come across this and be aware as well.
