That's exactly what I'd recommend. Keep your redosing to 1ppm and wait until you've got consistent zero readings for ammonia and nitrite in (probably) less than 12 hrs and steadily increasing nitrate.
Although the idea is that because you cycle at an elevated ammonia level you can immediately add all you stock, it doesn't mean you have to. By keeping the dose low and adding less fish to start you'll avoid the possibility of a mini-cycle occuring after the fish have been added. So, as you say, tetras first, corys a week after and the gourami a week after that. The bacteria will go dormant, they don't die, so they'll pick up where theey left off (although with a delay possibly). You just need to keep an eye on your water parameters, just to be sure, after you add any fish.