Welcome to LTG! That is one clean machine! Very nice! The serial number makes her a 1997 made one.
From the 1997 catalog:
Today Guild ships the Korean made new model with D'Addario
EXL115 Nickel Wound, Medium (.011 - .049) strings.
Here is an excellent write-up from our forum owner GAD:
Today’s bit of 1990s Guild goodness is a Westerly-made Guild Starfire III from 1997. This black beauty came to me by way of private sale after requesting a Westerly Starfire with SD1 pickups on a popular guitar site. The mid-late’90s is my favorite era of Guild electric guitars. From the...
www.gad.net
The string topic is always a topic of personal taste, here was a previous discussion:
I have finally gotten around to being wanted as a "lead" guitar player, which is what I consider to be easy lead parts, with a few triads and things added in just to brighten things up a bit. On all my acoustic guitars I like plain and simple Martin or D'addario PB lights. Now the big question...
letstalkguild.com
Walter wrote there in post #6:
"
I like pure nickel rounds. Easier to get good balance between the wound and unwound strings for me than with nickel plated steel strings."
Ralf