The first thing to decide is, what type of planted tank do you want when its finished? If you want a water garden with all sorts of colourful plants, but few or even no fish (as many of these are), you need a high-tech approach. If you want at the other end a tank of fish that happens to have some healthy and beautiful green plants, you can achieve this with a low-tech approach. And there are countless options between these two. Cost is another factor, not only set-up cost but operation (electricity). And how much effort you want to spend, not just setting it all up but long-term operation.
I have always gone with the low-tech method. Moderate lighting, no CO2, once or at most twice weekly fertilization with a basic liquid fertilizer and in some tanks substrate tabs (depends upon the plant species). I have tanks of fish that happen to have live plants in them. So you do not need diffused CO2 here.
The height of the tank does impact light penetration. I have seen this between my 70g and 90g tanks, which have the same lighting and plant species. In this case, I had to reduce the duration on the shallower 70g to prevent nuisance algae.
I always "silent cycle" and in 20 years I've not had problems. Plant the tank, including some fast-growing plants (floating plants are ideal for this), add a few fish, way you go.
Byron.