Using a PRD for Self Registration

I see in the docs how to use the create portlet to make a self-registration page, this is up and running for me and works, but it's not sufficiently flexible. I don't want to see the navigation on the left, I can't really customize the look and feel (I would prefer a checkbox to a pair of true/false radio buttons) and I would also like more control over the names of links/buttons to continue.

Is there a portlet to use to expose a PRD to the guest user?

thanx
Rob