What you are planning sounds good. Word of warning though. It really depends on what brand you buy. Bonds stuff is small so 0000 probably wont fit long. A 0000 easy suit may not even fit a newborn as they are tiny. My son has been out of Bonds 0000 for ages but he's only just getting too big for 0000 in other brands. My son was born 7 pound 13 ounces and 0000 was perfect for him when he was born (he is short though).