Turn almost 301 podcast episodes into a downloadable audiobook

i need the first 301 episodes from my podcast, Sales Funnel Radio, turned into an audiobook which i'll use to be downloaded on my podcast site.

Here's a folder of the episodes (i removed some so don't just grab them from iTunes): https://drive.google.com/drive/folders/1clSsXuUwCZD3v9AUNvvsVZINNelYKY5X?usp=sharing