Now that the parameters are as low as you say, you should test once a week while you are still stocking, and then when you are finished you may not even feel like testing at all. When I got my first test kit I was testing every few days and then weekly when I did water change, and now I rarely do. Every time I do now it's always fine.
In saying this it doesn't mean you won't have unexplained fish deaths, or fish that suddenly get something wrong with them and have to be medicated, but your water is what I think everyone would consider healthy for fish.