Launch Slideshow from a folder using applescript/automator?

I recently converted my parents to using a Mac from the XP world they lived in for years. One 'feature' that my mom misses is the ability to launch a slideshow from a folder full of jpg's.

I know I can have her go to the folder, hit Command+A, Hit "Option+Spacebar" to launch that straight into a full screen slideshow, but I'd really like to create something that involves less remembering of sequence and modifier keys.

I thought this would be easily accomplished in Applescript, or Applescript in combination with Automator, but I just don't seem to be able to achive the desired result. I've searched all over the place for a solution, snippet, whatever, but either I am not using the correct terminology or it hasn't been done.

I've tried all sorts of variants on things like:

tell application "System Events"

tell process "Finder"

keystroke "a" using {command down}

keystroke " " using {option down}

end tell

end tell

If you can't tell, I am new to this scripting language and automator as well, but it seems like it should be capable of this...

Anyone have an idea?

Thank you!