Dave,
First of all, try to save samples of the all of the clips that you remove, even if they are broke. The reason is that depending upon production plant and when the car was built can make a difference in the clips that were used. For the front windshield, if your car was built prior to say January 1st, 1968, your car will pretty much used the longer style lower clips as found on the 66 to 67 B-Bodies. If built after that point, it will use the shorter style clips. Lots of people are having issues with the clips being reproduced for the rear glass trim. Make sure that your buying what is on your car. Some of these Ebay stores have no clue as to what they are selling. I always try to get customers to send me pictures of their originals if they have them to match them up for accuracy purposes. Once you do purchase them, test fit everything prior to paint and final installation to avoid any issues.
Whatever you do, do not toss the clips for the belt line trim. These clips are not reproduced, so be very careful removing the trim. As you remove the trim, make notes of the order in which they are removed as they are different configurations used.
The rocker molding trim clips are reproduced, but are very pricey. These clips are unique to the Chargers, so do not purchase the 68-70 B-Body rocker molding clips thinking that they will work. The clips for the grill trim is not reproduced as a complete and accurate kit, some of the pieces are ok, so try to salvage as much as possible if you should attempt to restore the grill. A clip though not 100% correct is available for the rear trim.
Hope that this will give you some guidance.
