I havent read the topic from start to finish, but this is what i do to cycle a new tank when i dont have a spare filter or anything to swap over to seed it.
I fill the tank with water and turn heater(s) and filter(s) on. Plant plants if needed aswell. Then i feed the tank flake food every night as if i was feeding a few small fish, then every few days i give it a little bit more and more, and then after a week or so i chuck in a couple hardy fish (usually some kind of cleanup crew) and let them settle in, then start adding things slowly, every couples weeks or so....
I *hardly* ever test my water so dont know if it works very well, but it has always worked for me. Nowadays i just chuck some extra sponge into my canister filter, and then when im ready i take water out of the same tank, and chuck the sponges in the new tank and i have an instantly cycled tank, heated and everything