The bootless is the way to go. You can cut off one side and just spray edges, you can let it roll and spray 40' swaths and you can use the included wand to spray gum saplings with 5 oz per gal for a complete nuke. It is one of my most used piece of equipment.

My boomless attachment attaches to my ball mount on the hitch. Run the Polaris at 4-5 mph and it does work.

Pro tip; get the higher output unit with the bigger pump.