Hi Dave ,
12 years ago means this Stella is the silver one , I just got back my STL10000PG ( 5:1 ratio ) from the authorized Shimano dealer , it took them almost 8 months to find the suitable alternative components to repair my reel , it now sports 6:1 gear ratio as they could not find the same gear assembly in Shimano Japan inventory .
If that reel of yours is not in anyway requires any replacement parts , I am sure a reliable reel servicing person can handle the works required , bearings n drag washers are easily sourced , not sure other propreitory components though . Good luck with the reel .
Jon .