Without seeing it, it will be hard for anyone to be able to help about the walls. Even with pics, it may be impossible. But, you can send pics to poolforum AT gmail DOT com and reference the URL of this thread when you do. Ben may or may not have time to get to your pics onto the forum for a couple of days, but maybe ....???
Regarding the liner being able to be re-used, it is doubtful. Usually once a liner pool is drained, the liner has to be replaced.
Welcome to the forum, by the way!
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