Let page load archive outside folder

I think I’m missing something.

• I have my theme in wp-content/themes/mytheme
• I made a custom post type (services) in a subfolder: themes/mytheme/services/, wich also has the archive-services.php and style.css
• The archive page load succesfully for the CPT
• But let’s say I also have a page called: Our Services, with the permalink being our-services, I don’t want to also make a page-services.php with a template name to load it, ’cause that would bypass my purpose of all files being loaded from ONE folder.

So how do can I make sure the page “Our Services” loads the archive page in the subfolder?

A little more info, I use the template redirect like this:

add_filter( "archive_template", "include_services_template_function" );
add_filter( "single_template", "include_services_template_function" );
function include_services_template_function( $template_path ) {
    if ( get_post_type() == 'services' ) {
        if ( is_single() ) {
           $template_path = dirname( __FILE__ ) . '/single-services.php';
        }
		if ( is_archive() ) {
            $template_path = dirname( __FILE__ ) . '/archive-services.php';
        }
    }
    return $template_path;
}

But if ( is_page() ) {
obviously doesn’t work.

One idea is to make the page-services.php in the subfolder, but in the admin, where I can select a page template in the dropdown, it doesn’t show up.