No problem. Even if you're in no rush, still expect things to take longer than you expected!
I was in a similar situation with a recent shrimp tank setup. Wanted to get things started, but still waiting for some tank parts to arrive and to find time to modify the filter the way I wanted in (with very fine gauze covering intake). So I tried putting the Amazonia soil in a bucket with an air-stone to try and leach out most of the ammonia before putting it into the tank. This was however for a shrimp tank where I don't plan to plant into the soil, just want it for looks and buffering capacity. Did a water change every 3 to 5 days, and also hung a mesh bag full of Seachem Matrix on the side to try and start to build some bio activity. I dosed Seed every few days too. Bucket of soil must have sat there for about 3 weeks in the end. Guess it must have leached out some of the ammonia, but it wasn't like the soil and filter media were ready to go as soon as it went into the tank. Probably took 1 week off in tank cycling time for 3 weeks worth of effort, as a complete guess. Downside was that water changes in bucket and moving soil from bucket to tank did break up some of the soil particles slightly.
To be honest, if you're planting into the soil, I'd be tempted to wait until you have everything ready then plant from day one. Planting disturbs the soil, releases a whole new wave of ammonia into the water and sets everything back. I'm not sure you will gain much by starting off unplanted. The plants are useful for offsetting the side effects of using fresh nutrient rich soil. Ok maybe not much algae if you keep the tank dark, but probably not really much to gain either.
Best advice I received for setting up a tank was: set everything up the way you want it to end up from day one (correct water parameters, temp, light, pH, filter, filter media, etc, etc). That way the biofilter that grows will survive and take care of the tank long term.
Good luck, and enjoy the Amazonia ride!