Another Cycling Question (Fishless)

No because the water isn't where the ammonia, etc is coming from. Removing the water will not remove any of the bacteria you need to eat ammonia and nitrites. With fishless when the cycle is complete you can stock fully. There is no need to stalk just a few fish a week.

The bacteria responsible for the oxidation of ammonia and nitrite to nitrate are obligate attached bacteria. They cannot grow or metabolize free-floating in the water column. They will live in the place where they get the best conditions of oxygen and energy source supply (ammonia or nitrite). In your tank that will be on the biowheel.

What do you mean by balanced? When you do your final water change, you simply need to make sure that you use a water conditioner to remove clorine/chloramine. Test your water after the change to ensure the nitrates are at a safe level for fish, if they're still too high, then do another water change. In addition, after the water change, I like to challenge the biofilter (add another dose of ammonia) one last time just to make sure that it's completely ready to add all my fish.

It will be a long while before you'll be doing that last water change. In fact, you may find yourself needing to do a water change part way through if your nitrite and nitrate readings rise out of testing range. Make sure you keep tabs on your levels by testing daily. HTH!