GP's endless load into custom query results in CPT

Heya.

I have a CPT, on whichs' singular entry I have a query to get related stuff by a custom taxonomy. Adding pagination to the query is easy enough, but produces crap results in the url, not really wanting to have single entries paginated only to have the user scroll thru the entire CPT entry again to reach the paged results. So the endless load GPP offers would be ideal here.

1. How to make GPP also take note if there's a post pagination navigation when browsing a singular CPT?
2. Also: Not all pagination is created equal; what would be the structure and markup of the pagination call needed here to match what GPP expects?

Below is the query I'm using, just fyi. Thank you!

$args = array(
	'posts_per_page' => 12,
	'paged' => $paged,
	'tax_query' => array(
		array(
		'taxonomy' => 'sijainti',
		'field' => 'name',
		'terms' => $slug,
		'operator' => 'IN',
		)));

$maahaku = new WP_Query( $args );
if ($maahaku->have_posts()) :
	while ( $maahaku->have_posts() ) :
	$maahaku->the_post();
    get_template_part( 'inc/archive', get_post_type() );
	endwhile;