I should have some for both AT20 Hot AC and AT10, have to look for them. Also, if you're interested I have the new era AT40 cue sheets for:
Casey Kasem's Show Code: 99-52, Date: 12/25/99 - 12/26/99 i.e. Top 40 Hits of 1999, including the original Affidavit - Certificate of Performance Casey's Y2 Kountdown - Millennium Show, Date: 12/31/99 - 01/02/2000, i.e. 40 Days That Changed Music
AT40 with Ryan Seacrest, Show code: #10-27, Show Date: Weekend of July 3-4, 2010 i.e. AT40's 40-Year Anniversary.
I also have original amfm CDs including envelopes for both of the aforementioned Casey's AT40 Top40 Hits of 1999 and Casey's Y2 Kountdown and just the CD copies of the original CDs for AT40 - Top40 Hits of the 90's, plus some original CDs of few AT20 and AT10 shows.
Also I have the original vinyls for:
AT40 with Casey Kasem, show 863-13, chart date: 9/27/86 without cue sheets Casey's Top 40, show #89-47 for broadcast the weekend of November 18-19, 1989, including the original Westwood One Radio Networks cue sheets.