If you are getting a baby, he won't likely be remotely adept at hopping from perch to perch and you should use several long perches close together, plus many around the bottom of the cage in case he falls and needs to climb back up. (young parrots often hesitate to fly short distances)
I would go with the dowels for now and then switch to better wood perches that are better for feet (But far more expensive) later on when you don't need them so close together.
Many people buy perches made from exotic woods, but I like to make mine by hand out of sunflower stems: not quite as good as far as diameter variety, but fantastic texture for feet and super chewable, full of good vitamins.







