Hey folks - I'm struggling with the best chunnel design. Just saw the 5-foot bent conduit chunnel, which seems too expensive for this budget. I have some pvc piping I can flex to shape, but it seems sort of wimpy. What are you using for your arches, assuming you have an arched design as opposed to a square/box design? I really want portable sections so I can move pieces out if necessary for repairs, rearranging, etc. Thanks!