Hi, Curtis,
I have a used mainsail for you. I recently made a post with the particulars, and I copied/pasted it here. It's made by Skip Moorhouse of Moorhouse Sailmakers, New Jersey. It has #3133 on it, and it was originally used for racing. I had a sailmaker add sail slugs to the luff boltrope which allowed me to keep the sail attached to the mast when furling. Although it does not have as much drive as a brand new sail, it's in surprisingly good condition with no stains, intact stitching (including on the Mariner logo), and a clear window. Battens included (2 original, one replacement). $350.
You can find pictures of it attached to the forum post I made (I think it's the thread just below yours), and I'm happy to send you more pictures should you want them.
Let me know! Feel free to e-mail me - bayreuther@sbcglobal.net.
Nate
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Nate Bayreuther
Webmaster, Mariner Class Association
#1922 "Orion"