I’m just about completely level 2 to 3 feet around the out perimeter, above ground pool, how important is it to get the inside completely level? Question #2 - what does one use to hold the walls in place during install in case of a windy day or 2, I’m thinking it will take a couple days to get wall up, liner installed and pool filled. Will large binder clips work as long as I pad them, then some cord and staked in ground? Looking for cheap. Thanks for any advice. Finally no rain this weekend and I’m off all next week. It’s time 