I am looking to finalize the last 10 panels that are to be added to my system. was considering building a T post style structure to support the remaining 10 panels. Was considering 4x4 steel uprights and an I-beam square box up top to mount the rails to. has anyone built something similar I am just not sure how large an ibeam I would need to support the about 500lbs of panels and the weight of the I-beams. ill try and draw this up in sketchup momentarily and add a picture.