I like the look of longer tables where it is more like a family style vs the round tables. I LOVE the farmhouse style tables but thy are ridiculously expensive to rent. I was thinking of putting two or 3 square 54" tables together for about half our guests and round the other. Mixing banquet tables (can only find 30" width) would be much less expensive but I worry if there will be enough room for smaller centerpieces and that our guest may bump knees. Any thoughts? Our wedding is all outdoors under a tented area, 40'x80'. Pictures would be great! Thanks!