Radio Button Options - Adding Spacing

I have a radio button with 3 options in a "COMPACT" choiceLayout.  I am trying to add whitespace between each radio button value to make the selection less dense.

I have tried padding with whitespace, e.g., choiceLabels:{"Option 1       ",...} but Appian trims the extra whitespace.  This occurs when I use char() also.

One option is to make each choice its own radio button field, and then distribute the components across the interface, but this will create a lot of validation overhead.

Any suggestions?