Hi,
Thanks for writing. In cases like this I prefer to extend the existing component rather than create a brand new one. I see two easy ways to do it: add a checkbox "Show solder pads" and have it on by default for backwards compatibility...or add a numerical field "Solder pad size" and when you set to 0, it doesn't show anything.
As far as radio shack boards...I prefer to keep stuff like that as templates, rather than components, because it can be made using the existing components. To do that, just create a blank radio shack board and place it in templates folder. It will offer you to load it at startup and you can always use File -> Import to add more boards from a diy template.
Cheers,
Bane