Real Hams don't look for compensation from anyone in my opinion especially when it can be found for free.
Here's a link that is rich in information on moxon antennas. You will find plenty of 20m moxon projects in here plus other bands and in multiple elements. I too have run moxons and their great antennas.
If you still don't find what your looking for which I can't see happening I'll glad get you the ARRL version. Free!http://www.moxonantennaproject.com/