I have been working on building a Moxon antenna for 6 meters. I am using the similar design style as K3NG antenna (http://blog.radioartisan.com/homebrew-lightweight-6-meter-moxon/) with some minor differences.
Like K3NG’s antenna, the poles are made from snow plow marking poles. I put super-glued spacers on the ends with holes to allow the wire to pass through. I then bent the poles upward so that the wire so that the wire tension is always maintained and at the measured distances based upon the Moxon calculator was obtained.