This is a useful video by the website The Art of Manliness. It covers some basic needs and outfit ideas.
The styling is classic and conservative but great tips. However, we don’t agree with splitting a suit up and wearing it as separates. They will wear differently and end up looking mismatched. Not a good idea because suits are expensive.
If you need more pants and a jacket, instead of splitting the suit, you will need to buy an extra pair of pants and a suitable jacket, for your needs.