Salt will not dechlorinate water. Its best not to use salt in the aquarium at all, unless treating for ick or disease.
You did kill all the good cycle bacteria with the tear down. I would go buy a good water conditioner such as Prime. Prime is great for new tanks, because it not only dechlorinates, but helps detoxify ammonia and nitrites that will develop while the tank goes through the cycling stage. All new water needs to be treated.
New tanks, best only to start out with only couple fish. You are going to need a water testing kit, sold for aquarium use. The API liquid freshwater testing kit is a good one.
Test daily, preform water changes to keep both ammonia and nitrite under .25 ppm.
The best way to acclimate new fish, is to either put the bag in the tank or place the fish and water in a bucket. You want to slowly add your water to the water they came with. No more than a quarter cup every 15 minutes. Keep doing this till more than 1/2 the water they are in is your own tank water.
This will help the fish to adapt to the changes in your water. Sudden changes can throw the fish into shock.