Thanks Radar, I have blown the educational budget for the time so will try to find the smallest dish designed for use with the HH120.
The attachments are photographs of the GeoSatpro1.2 set for AMC21. The height is required for the trees in front and the trees behind protect it somewhat from the wind. The mast leans forward as I am very east of the satellite and the dish is at the minimum elevation (due to the unconventional mast), the eight stakes are driven well into the ground, the guys are strung like violin strings and the dish could be tighter but I would rather have it rotate in high wind than fall in a broken heap. It works surprisingly well and withstands normal off-the-water winds without a hitch. When it moves in a storm I just go up a ladder with a stick and push it back into place in a few minutes. Oh yea. It is anchored to a cement foot and can be swung down for maintenance. Down, for the record. is much easier than up.