I wouldnt buy a used one, because where it over laps the header bow and three bows around the trunk it is rolled and stapled. It being already cut to fit, you dont have the option of being able to stretch the material to get a good hold as you staple. Bolt ons are ok,to buy used. Imo not interior stuff.
When i bought mine it had a specific # as far as the part . you can always dbl check me by going on american muscle and looking at part numbers for,the same product but different years.
Youl 'll need some torx bits also for the front header bow #15 think.
I know when i do mine again, on down the road, there is a better one than the one i bought. Its a better material for an extra 100 or so