Submit button on the right

Do you mean in your sidebar contact form?

To reduce the size of the paragraph input, you can add this to your child theme's style.css stylesheet:

[css]
body .gform_wrapper textarea.medium {
  height: 80px;
}

To move the submit button, you can add this to your child theme's stylesheet as well:

[css]
#gform_widget-2 .gform_footer.top_label {
  float: right;
  margin: -15px -20px 0 0;
}

You will have to customize those values to move the button where you want it. I had an issue with the sidebar jumping from the left to the right side of the page so I could not get the exact numbers for you, and I also do not know exactly where you want the button.