I have been told that morning sun influences growth more than evening sun, consider which side of the hill or clearcut to choose accordingly.
Water can be supplied as a drip system or a flood system from a food grade plastic barrel buried in the ground with water fed into it. Nutrients can also be added to this reservoir. South side and google maps already mentioned. Do not plant in a moist area, too much mold. Consider soil ph beforehand if you have that option. Tree lines where foliage is mismatched help conceal from the air. Access trails concealed by overhead cover are a good idea. Try to anticipate reasons people would travel through a given location. Hunting, hiking, prospecting, kyaking..... people these days are generally lazy and wont likely travel more than a few hundred yards off of the road. Or through horrible thorny/stinging brush either. Unless the are obsessed with something in that particular area. Deer, gold, mushrooms etc. Steep ass inaccessible hillsides are the best, but that's where the air patrol will be looking......
btw it's a little late too be starting outdoors this year if you want anything very big.