Tips for restoring rear hatch?

[Aarons72]

Im going to start the restoration of my hatch...Its solid on the outside but I can hear lots of rust etc...on the inside. How have you gone about making your hatch nice? Are the rubber gaskets on the hinges available to buy? How complicated is replacing the old stand up arm things with a gas shock type of set up etc...Let me know what you've done other than buying a really nice replacement. Thanks!