ARBORS or ARCHED TRELLIS

I /  We,   want to make several Arched Trellises to grow small watermelons, cantaloupes, and Asparagus yard long green beans on.----I guess the vine veggie list can get pretty long and the possibilities are endless.  Our first Arched Trellis is made of  landscape timbers and 2x4s and will be covered with  concrete re-enforcement wire with  6" mesh squares.  The main post are concreted into the raised bed block holes.
the total width and length is   43" x 56"
This trellis is built for melons.