I've recently finished a farmhouse style tabletop that is 40"W x 84" L. I was originally going to build a trestle style wooden base, but have now decided to buy "X-Frame" tube steel metal legs. I'm planning on attaching the legs so there will be about 20" of overhang on each end. I am looking for advice/guidance in how wide the metal legs should be and how much overhang I should have on each side of the table. There won't be a cross support between the two metal legs. Any advice is appreciated, thank you for your time.
Photo of newly made table top and metal legs I plan to purchase attached for reference.