Possible to change Lusaka template navigation to one page like the Pacific template?

Hello all, a quick question. We're using the Lusaka template to create our site, and realized that the content we have would be better suited to a one page website, like the Pacific template-- https://pacific-demo.squarespace.com/. I know we can change from Lusaka to Pacific, but wondering if there's an easy way to change just the navigation in Lusaka. Thanks!

It may need to inject custom code to create inner page navigation on Lusaka

Thank you. It sounds like it will be easier to just port the content over to Pacific!