im not a fan of dry brines... i like wet brines... here is the basic one i use

1 cup white sugar
1 cup brown sugar
1/2 cup salt
1 quart water

soak for 24 hours, pull out, rinse, let dry for 1-2 hours, smoke..

if you want it sweeter, about 3/4 of the way done, sprinkle dry brown sugar on top and it will melt leaving a nice candy crust....

are you trying to make Squaw Candy, or just sweet smoked fish?