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The reason three wheelers are obsolete is they are death traps. You'll be ok if the place is fairly flat I guess, but heading downhills they are too easy to flip, if you hit a bump and your front wheel is jerked to the side there's nothing on the ground to the right or left to stop it tipping. Quads still have the problem to some extent, if your bars are jerked to the side there's not much of a wheelbase to stop it tipping. Most modern bikes use a CVT so you can get on and off all day without fucking around with gears.
Side by side UTV is where it's at now, much safer and compartments everywhere to carry gear. I used a quad on 1000 hilly acres (kingquad 500) but got pic related and wouldn't go back. The only problem is when you get stuck climbing a hill you can't get out and manhandle it and you can't see shit to the rear to reverse down. But they aren't cheap, maybe overkill for a smaller place. We just trade up when the warranty runs out so we aren't fucking about with broken vehicles and down time, and it's easy to track the costs.
If you're mostly just doing stock work maybe just get a two wheeler?