Same answer as before: make a temporary test setup before deciding which location. TV signals can be contrary. The best signals aren't always in the most convenient antenna location. Many times during an antenna setup I have measured a difference of 10 dB between a hot spot and a cold spot on my hand-held signal level meter as I moved the antenna; a make-or-break difference.
I was having trouble receiving CH 42 because my antenna was facing the wrong direction. I went across the street and setup a 2-bay UHF antenna, my meter, and a preamp. I was able to get a nice scan and a stronger signal with the antenna aimed at the transmitter for CH42.
Interestingly, when I moved the antenna a few feet left or right, without changing the height or azimuth, there was a big difference in the signal strength and scan quality. This is most likely because of the tree line in front of the antenna about 200 ft away which created the non-uniform field.
I had an 8" TV in my car running on an inverter which was able to get CH 42, after connecting the 2-bay UHF antenna and a Channel Master 7777 preamp.
A good antenna installer will try different locations if possible. They call it "walking the roof." In your case I guess it would be called "walking the yard."
My point is that because of the trees you have a non-uniform signal field which might require some experimentation, and I'm trying to alert you to that possibility now.
