Pink QueenWomen's 2 Piece Outfit Set Long Sleeve Button Pullover Sweater Top and Wide Leg Pants Knit Sweatsuit

Could you make a 3t or 6-7 year set or both?

Can you get just the bottoms?

I am typically a small or medium in bottoms waist size between 27/28 I am going back and forth between m/l..will large be too big for a 5’9’ slim 145?

Will it be shrink after washing?