There is a photo of an 89 epi lp in here:
http://www.blah3.com/dieselblog/index.php?category=4
The headstock doesn't look exactly like a gibson... But similar... It certainly looks quite different than the avatar
Here is anothre 80s epi les paul:
http://forums.weebls-stuff.com/showthread.php?p=1849382
You may have a 1996 model...
Numbers starting with 6 were built in 1996...
http://en.wikipedia.org/wiki/Epiphone
What is the exact serial number ? Does it start with a letter ? If yes, what letter ?