A PMHNP is developing an integrated behavioral health program within a federally qualified health center (FQHC) serving a rural underserved population. The clinic sees a high volume of patients with diabetes, hypertension, and chronic pain who also screen positive for depression and anxiety. Many patients have expressed reluctance to be referred to the regional mental health center 45 miles away due to transportation barriers and stigma. The PMHNP is tasked with designing the treatment delivery model. Which planning approach best addresses the population's needs?