add_filter('piklist_post_types', 'listing_post_type');
function listing_post_type($post_types)
{
  $post_types['vessel'] = array(
    'labels' => piklist('post_type_labels', 'Listing')
    ,'title' => __('Enter boat name')
    ,'public' => true
	,'hierarchical' => false
	,'has_archive' => true
    ,'rewrite' => false/*array(
      'slug' => 'vessel'
    )*/
    ,'supports' => array(
	  'title'
      ,'author'
      ,'revisions'
	  ,'thumbnail'
	  //,'editor'
	  //,'excerpt'
    )
	,'can_export' => true
    ,'edit_columns' => array(
        'title' => __('Name')
        ,'author' => __('Created by')
    )
    ,'hide_meta_box' => array(
      'slug'
      ,'author'
      //,'revisions'
      //,'comments'
      //,'commentstatus'
    )
	,'post_states' => true
	,'status' => array(
		'draft' => array(
		  'label' => 'Draft'
		  ,'public' => false
		)
		,'active' => array(
		  'label' => 'For Sale'
		  ,'public' => true
		)
		,'inactive' => array(
		  'label' => 'Inactive'
		  ,'public' => false
		)
		,'contract' => array(
		  'label' => 'Under Contract'
		  ,'public' => true
		)
		,'sold' => array(
		  'label' => 'Sold'
		  ,'public' => true
		)
		,'expired' => array(
		  'label' => 'Expired'
		  ,'public' => false
		)
	)
    ,'capabilities' => array(
        'edit_post' => 'edit_listing',
        'edit_posts' => 'edit_listings',
        'edit_others_posts' => 'edit_others_listings',
        'publish_posts' => 'publish_listings',
        'read_post' => 'read_listing',
        'read_private_posts' => 'read_private_listings',
        'delete_post' => 'delete_listing'
    ) 
    ,'map_meta_cap' => true
  );
 return $post_types;
}

function apply_listing_caps() {
    // gets the administrator role
    $admins = get_role( 'administrator' );

    $admins->add_cap( 'edit_listing' ); 
    $admins->add_cap( 'edit_listings' ); 
    $admins->add_cap( 'edit_others_listings' ); 
    $admins->add_cap( 'publish_listings' ); 
    $admins->add_cap( 'read_listing' ); 
    $admins->add_cap( 'read_private_listings' ); 
    $admins->add_cap( 'delete_listing' ); 
	
	add_role( 'dd', 'DD', array(
		'edit_listing' => true,
		'edit_listings' => true,
		'edit_others_listings' => true,
		'publish_listings' => true,
		'read_listing' => true,
		'read_private_listings' => true,
		'delete_listing' => false
	));
}
add_action( 'admin_init', 'apply_listing_caps');

add_filter('piklist_taxonomies', 'vessel_make_models');
function vessel_make_models($taxonomies)
{
   $taxonomies[] = array(
      'post_type' => 'vessel'
      ,'name' => 'make'
      ,'show_admin_column' => true
      ,'hide_meta_box' => true
      ,'configuration' => array(
        'hierarchical' => false
        ,'labels' => piklist('taxonomy_labels', 'Manufacturer')
        ,'show_ui' => true
        ,'query_var' => true
        ,'rewrite' => array( 
          'slug' => 'make' 
        )
      )
    );
   $taxonomies[] = array(
      'post_type' => 'vessel'
      ,'name' => 'model'
      ,'show_admin_column' => true
      ,'hide_meta_box' => true
      ,'configuration' => array(
        'hierarchical' => false
        ,'labels' => piklist('taxonomy_labels', 'Model')
        ,'show_ui' => true
        ,'query_var' => true
        ,'rewrite' => array( 
          'slug' => 'model' 
        )
      )
    );
	return $taxonomies;
}

Thanks. I should’ve tried that.

Same with show_admin_column, while you’re at it 🙂