Though I would share. I was able to create a PDF using the sheet number if the drawing is part of a sheet set. If not part of a sheet set, it will create the PDF using the file name. In order to get the sheet number from the sheet set, I insert a block with the attribute set to the sheet number and use the attribute value for the PDF name.
The routine will also set the paper size and orientation for paper sizes 11x17 up to 36x48. It sets the plot to use acad.ctb, extents, center and 1:1.
Thanks to everyone on the forum for all the information and support...
Feel free to comment, good or bad.