I am looking to outfit my 2020 F150 5.5’ bed truck with a kitchen/storage setup. I have seen lots of ideas on design so that part I can handle. I am trying to figure out if using the 8020 system aluminum extrusions, whether or not it can be made weather tight. My truck is a daily driver so I don’t want a camper shell or anything g on there. Any advice would be great. My family and I are new to the camping scene.