Neomow X SE Robot Lawn Mower Perimeter Wire Free for 0.75 Acre 3D LiDAR SLAM+Vision Mapping Robotic Lawnmower with 4G, No RTK Station Required, AI Accurate Obstacle Avoidance, App Control, Anti-Theft

The Yuka Mini 500 is a fantastic value at $649 and can do 27 deg slopes. Since trees are not an issue in the front, you should be fine with setting up the RTK antennta. I had my Mini 500 for almost 6 weeks and it runs a few times a week with no issue. I am in the process of creating my first YouTube video and this is my first device that is reviewed. I give it two thumbs up for sure in my experiences. I am intrigued with the Neomow X, but it's over the top for your requirements. There have been coupons bringing it down to $1900 Just remember, Amazon has 30 day return policies. I'd start with Yuka Mini and see how that does.