You should be able to buy or make a drop checker to help you determine how much CO2 you are getting into the water. Lots of them are made in China and should be available to you. Or, making one isn't hard to do. With your KH test kit and some bicarbonate of soda you can make a 4 degrees KH standard water solution for the drop checker, but get distilled water, not tap water, for that.
Once you get the CO2 adjusted to give you 30+ ppm, you should turn off the CO2 at night to avoid overdosing the fish. I wouldn't use the pH controller, but if you do use it, set it to maintain the pH that the tank water reaches when the drop checker shows that you have 30+ ppm of CO2 in the water.
You probably have low to medium intensity light, but that is just a guess. If that's true, you don't need to try to keep the CO2 as high as the fish can tolerate, a lower concentration will work well enough.
I think Seachem's recommended dosages are for a low light tank, and have been found to be too low for a higher light tank. That would encourage me to double the recommended dosages, relying on the weekly water change to get rid of any excess. You could dose all of those you mentioned, but the Flourish Trace is little more than pure water, so you don't need to dose it.