Friend looking for a specific ball of yarn

Knowing how helpful my dear friends on RCTY are, I volunteered to check
for her to see if anyone would possibly have a ball of yarn so she,
also a Susan, can finish a sweater. Here is the scenario...bought the
yarn in Alaska 2 years ago while husband stationed there. Moves here to
FL, finds a pattern she wants and starts the sweater. Too much done to
go back and put the color for the cuffs and neckline a different one.
So now she either abandons the project, starts over completely, or begs
for help.

The yarn is a deep blue with colored flecks. Plymouth brand. Color 531
Lot 68117 Galway Colornep. It is similar to but not the same as color
556. Any help would be appreciated. She has done an online search and
knows it is no longer made so I suggested you guys might have a partial
ball or whatever. Please let me know at S Carey 77 at aol dot com
(without the spaces)

My thanks to you in advance.

Hugs,
Susan