Take it from someone who knows suits, orphaned vests are bad and three-piece suits are archaic. A well tailored suit is fine but no offense, I don't think you know enough about this very narrow aspect of professional wear to give solid advice. There are right and wrong answers here and frankly, your preferences have zero relevance to question.

Briefly, here is the advice to follow for professional wear:

A 1L will need a suit. If you're at a school that has networking events or if you go to speak to lawyers, you want to wear a suit in most situations. A navy or charcoal suit with black captoe balmoral/oxford shoes is the standard and what you should wear. A white forward point or Ainsley collared shirt is good and a white or red tie (pin dot or repp) is fine. This is how a professional suit should fit on a slim person. The shoulder seem falls at the end of the natural shoulder. There is suppression on the jacket but there is no pulling on the button. The cuff on the leg is a taste thing but that's generally where it should hit as far as length.

You can buy a decent enough suit at Suit Supply. If you can spend a little bit more money, you should get a suit from Kent Wang. Brooks Brothers is good on sale as well. Don't get a double breasted suit. Don't mix and match jackets and pants. Don't get a black suit.

The reason why I know you don't know what you're talking about (aside from three-piece suit garbage) is because you're advocating really bad shoes. Most people at events will wear crappy footwear. It's not a big deal. But recommending Stacy Adams like it's a standard is remiss. The standard for professional shoes are Allen Edmonds. That doesn't mean they're great shoes but they're the best value you'll find.

I also take offense at the notion that every "man" should or should not have something. It's cool if you like a guy with multiple suits but a 1L has no need for it (one good suit is expensive enough) and buying more to check off some box of the "man" column is dumb.