2016 GMC 3500 DRW box

2016 GMC 3500 DRW box and gooseneck plate, box is in semi rough shape but definitely could be brought back to new shape with some time, one big dent on driver side rear, rusty but not completely through anywhere, bedliner is in great shape for it's age and how long it's been used. Also a 2012 chevy bumper, it should fit with the box (the gmc bumper fit the chevy) but I won't garentee it. Has a pretty sizable dent which would probably need to be pushed back to fit. $300 for the box and bumper. Gmc tailgate and taillights could be sold as well but they are in real good shape so would need to be the right price (considering I have ideas for them)