Heretofore my site was only informational and linked to my online auctions and eBay store. I am going to launch a new page on this existing elementor WP site – using woo I plan to sell wholesale lots of various lots of liquidated goods. Think 20x20x12 ish and 20 lbs. boxes. US only. I want to charge shipping as is customary for this type of sale. What are some good plugins or solutions for generating the variable cost and adding at checkout and then integrating to a shipping solution. I have a fedex account with a modest discount.