Need an AppleScript Programmer

I need an AppleScript to open Apple Mail and display a New Viewer Window and then pause. I would then manually choose the individual emails I wished to export. When I was done making my choices, I would then hit a button start up the script again and it would choose "Expert as PDF . . " under the File menu and the script would place the exported emails into an iCloud desktop folder called EMAILSFOLDER. The script would then terminate