I recently purchased a Thompson that came with a very nice Police Case and full accessories. The dealer packaged the accessories and drum in the Case and shipped it. Needless to say, the drum ended up knocking the divider for the drum free and pulled loose the divider for the receiver. Are there any recommendations on someone to repair this? The brad nails are about 5/8"-3/4" long and I would cause further damage trying to pull the dividers apart enough to reinsert into the dividers