Rust! Should I sell it?

standup303 said

Found rust in the trunk, package tray, back wheel wells. Not excited about it.

All I have done in the past is wire wheel the crap out of it then KBS coat it or Rust Bullet.

Any other tactics you all would recommend?

Should I just sell it? Always a love hate thing with this car, today is a hate day haha.

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For good common sense body repair teaching look up on Youtube, Fitzee's Fabrications. He shows how to build even fairly complex repair panels with basic tools.
You can use the techniques learned to repair that rust through in the top photo. Other areas you will probably need to remove whatever coating has been applied to inspect what is under.