No, Banana Republic does not offer a men's wool suit, but they do make wool blazers and wool suit pants.
No, Armani does not currently offer any mens' suits with 3 buttons for under $500. If you're looking for something to fit your budget, try the Caravelli Mens SB 3 Button Solid Black Suit.
Mens suits can be purchased from a wide variety of stores. Mens Suit Shop is a popular choice for every different size of suit, and they do custom tayloring as well.
The warranty depends on the store selling the suit.
Fruit suit is a hinky pink for the peel of a banana.
Black
fruit suit
The best suit jacket for a short man is a mens three button suit.
fruit suit
Many retailers offer quality men's suits at reasonable prices. You should try Men's Wearhouse's website at www.menswearhouse.com/ for your son's suit.
fruit suit
Yes, they will.
It depends on your budget and what quality suit you want/ how many times you will wear the suit. If you're only wearing it this once, I suggest a discount store or maybe buying used. Men's warehouse does offer quality suits a low price, so it's a good buy if you're not looking into designer or high end suits.