I am looking at this.
http://www.parelectronics.com/stress-moxon.php
It looks like a decent and small antenna for 6 meters. They run around $100.00. Has anyone used one or heard anything about them? The eham revues are very positive.
Moxon's are really simple to build... just in case you haven't already seen this....
there is
Software to give you all the dimensions you need....
A friend has one that He built for 6m. Says that it works great.
I just don't want some ugly ass thing that I built up there in the sky.

Try an M2 ho-loop or even.a stacked set.
I used a 6M Moxon at Field Day that a buddy homebrewed. Worked nice and was very receptive to my Armstrong rotator.
I run a ku4ab loop on 6m wihich is similar to the M2 loop. I think I paid around 65.00 delivered years ago.
I've worked from west Texas to nova scotia with it. I'd check into a 6m loop.