The headliner in my 2007 Ion 2 sedan needs to be replaced. A local professional has estimated ±$660. I'd like to make their job easier by removing belongings from the car, but is there anything beyond that I can do, such as reclining the seats, etc? Would they need access to the trunk? I will have to leave removing any factory-installed things to the professionals, though. Any suggestions would be appreciated. Thanks!