When using table salt you should clean the salt off every couple of days and reapply as the salt will soak up the fluids and will harden and you will need to reapply fresh salt. 2 weeks should be long enough for your fan to dry.
Do not heat your spurs as you will cause the spur caps to fall off if your not careful. Just clean the scales and meat off the boneand set them in salt also, if you want to whiten them when they are dry you can apply some peroxide to the bone only. Use a q-tip to do this and don't get it up on your spur cap. You don't want white spur caps. Bleach will weaken the bone if left on to long.