My new estimate is heavier because I only counted the legs and not the rails or other little bits like the backsplash.Buy these 4 or 6 and adjust your weight estimate down 75 lbs or so . These wheels don't have levelers either . On a table that large that's something to consider .
And yeah that's a good point about the levelers. Dang, I was hoping to keep this project relatively small but I guess it's going to snowball.