It would be a big favor to the friend who these beloing to, if you could take them to a copy shop and make copies of the front and back of the album coves and any booklets inside. The proper storage for the vinyl may not be the proper storage for the paper covers and booklets. I did everything "right," for example, for the advice I had at the time. I now have a nice stack of pretty-good vinyl wrapped in moldy, some-parts-missing paper.

ANY advice you get is only going to be the best thinking available at the moment. Better advice will come down the pike, but in the meantime the materials you store (with today's best advice) will be aging in some ways you cannot now predict or, unfortunately, control.

~S~