Question concerns offering recurrent PayPal monthly payments for multiple products

I've looked around via web search but haven't found a recent answer to this question. We sell trips that come with a $3k plus price tag. As such, most participants prefer monthly payment. In the past we used WooCommerce Yahoo integration and we could offer a customer opportunity to purchase multiple trips on a recurrent payment plan into our PP business account. We decided not to keep WooCommerce Subscriptions and just utilize PP's recurrent payment option by creating profiles/products for each tour offered. The issue we are running into is the inability to allow a customer to purchase multiple trips (eg.- a family purchasing 3 trips at once) in one transaction versus having to purchase the 3 trips individually.