Activity for Grace

I got a problem. I have the dudes dress nailed down but i am having trouble with matching the ladies to the men. The men are wearing tweed white shirts and khakies. I want a light color, but one that can easily be found considering they are different...

Im looking for a dress that can be worn all body types. I have one tall person, one lady who is bigger, and a lady with a big butt. What do i do? I also want a dress thats less than 40 dollars if possible.