Formatting Stack 100 Bar Chart

Hi I am trying to format a stacked 100 bar chart. I am looking for help on 3 things

1. Re-order the break by's. I want the smaller amount on the left (see first image)
2. I want to round the corners of the bars. (see second image)
3. If rounding the corners is possible, I would like to hide/color white the axis lines

Thanks!