I had forgotten about Julie & Brian’s version Jetter. I really liked their albums together. Cross your fingers on the basement-stored LP’s---basement moisture may have taken it’s toll! If you don’t already have an LP cleaner such as the VPI HW-16, consider getting one to restore them.
Another great song that has had many cover versions is The Band’s "The Weight". None are as good as the original, but none as bad as the version of their seldom-covered "Chest Fever" by Three Dog Night. PU!