It depends on whether you wanted to be more active at GCCF shows Christina. If you did, then it would be worthwhile finding out which name you were closest to and find an acceptable alternative spelling of Sungold that would be different enough for GCCF.
If the palavar is just too much and you were not going to show at GCCF then no need to register with them or put your breed prefix with them either. Anyone who has one of your kittens would then need to register the kitten themselves.
I'd rather keep the money for other things - your breed prefix/cattery name is already registered with a well recognised registering body. A lot of people know yours as a good name so no need to worry.
