Replacing a rear hatch door?

Hey everybody, so I have a 2007 Subaru Outback that got pretty seriously rear ended a while back (hit and run while it was parked so insurance is a bust) and I'm wanting to replace the rear door myself. I found the part at a pick and pull near me, and am wondering what tools I'll need to do so. I don't have a lot of experience with cars and I'll need to pry the hatch open to replace it so I can't really check. Any help and advice on this repair in general is welcome!