Wanted: Seasons 20-23 Region 1 DVD Box Sets (Cardboard Foldout Versions)

[drewmaru]

I was fortunate enough to have a friend donate to me their collection of the complete seasons 1-20 box sets. They were all the cardboard foldout box versions of the seasons, and so I'm looking to continue that collection. Unfortunately, it seems impossible to determine if sellers online are selling these cardboard foldout box sets or slim plastic cases. Does anyone have these in good condition or know where I can get them in good condition? Thanks!