We are newbies to the pop up and repair worlds... so please bear with us! We bought our pop up with the promise from previous owner that there were no major repairs, just “elbow grease” needed. Roof sagging and major leaking through the ac proved that wrong, among other things. We removed ac, had a welder add braces and roof sag is all fixed! Hooray! Now we are thinking of getting rid of the ac (major rusting, subsequent damage, needing new parts- not sure we want to spend the hundreds of $ if we aren’t sure the whole system will even work). I thought maybe we could add a fan vent but that seems to require us cutting into the abs roof to make a single hole out of the two current ac holes. How would one without any “fixer upper” skills do that? Is there another way to cover up the holes on the inside and outside? We live in Michigan and are thinking of just buying fans for the inside. I added a pic of the inside holes for reference. (I have spent hours searching here and Google/ YouTub but can’t find anyone removing their ac or replacing ac with fan vent; with abs roof) Thank you for you help!