So I went against the packaging instructions and trimmed the rope light. I tested it at first and cut a foot off the end... IT WORKED!! So I trimmed it down so I could hide about 6 inches inside a hole in the soffit. I plugged up the trimmed end with a little silicone and am waiting for it to dry.
Received the star mural stencil (recommended by NightSkyMurals) and am ready to start the mural.
I bought some supplies at Lowes today, UV resistant flat and semigloss exterior paint. The flat is for the clouds, and the semigloss is for the trim. Also bought a black light to help paint the mural, recommended to assure each star is painted on the mural.
I primed all the trim, and since its about the same color as the end result... I've decided to show you guys some pics...
Here is a pic of the sky blue ceiling...

Here is a pic of the screen wall...

Here is a pic of the projector mounted...

Here is a pic of the soffit above the screen...

Here is a pic of the worst crown molding junction, it still came out great IMO, hardly noticeable...

And lastly, a pic of the rope light completed...

Hope you guys are liking it so far, dont hesitate to leave feedback.