Panties were always the easiest to procure. I started catalog buying back in the early seventies. So panties, a bra. An all in one control briefer/corset/girdle whatever you'd call it; Playtex made several with a panty bottom and a zip up the front for decades, which whittled down my figure a bit, it also had garters for stockings (unfortunately, no one makes this anymore, the closest aren't even close to being as shaping as the Playtex design was, nor as comfortable). I'd look for a camisole and tap pants. Pantyhose. A full slip. Then a maid's or nurses dress. Only for the past 10 or so years have I been able to find girl shoes that fit giant feet.