custom template file based on form type
You should be able to create a page--user--reset.tpl.php template in your theme directory alongside any other page reset templates and just include the content region inside there.  More information about template and theme hook suggestions can be found here (or at least after drupal.org comes back from its upgrade :) but the basic idea is to override the internal path of user/reset/../.. and Drupal is smart enough to ignore the rest of the path and just use the template given the base here.