some issues between a FEL (front end loader) and booms, cherrie pickers and like i have used in past.
wanting a hand crank winch. hand crank like you might find on a trailer for a boat. were you can back trailer down into the water. then pull the cable out, hook to boat. then crank the boat up onto the trailer. but for a boom pole. being able to have a pulley at the very end. and hand crank near the base / 3pt hitch. so i can easily reach down over something.
lift height, as in getting a fridge, that is standing up right in back of a truck.
lift reach. trying to backup and trailer and tractor being at odd angles and trying to get reach, to little over middle of trailer. i may end up having less physical lift capacity with a longer reach boom pole. but being able to just lift up enough weight on an implement, that i might be able to push or simply drive trailer away and let implement scratch and slide its way off.
long reach, for myself would come in handy, when it comes winter time, and pulling out the paddle boat, and row boats. out of the lake. and not having to pull them up on dry land to hook them up. to lift them up vs just dragging them.
being able to turn the boom side to side. more so when loading a trailer. to backing up to an area say in the shed, and object is heavy enough, that trying to man handle the object to move it, is out of question. being able to swing boom side to side, would really help. it is when ya get tractor position just right, but off them 1/2" or couple inches, were trying to physically push or pull object over via second person and then dropping object slowly can be down right dangerous to almost impossible.
a boom pole that has multi connection points, so i can lift heavier and heavier objects. the closer i connect chain to the 3pt hitch. would be great.
trying to skid a log, i just put draw bar on, and run chain right around draw bar and end of log. in order to have max lift capacity, and keep the weight as close to rear tires as possible. so front wheels of tractor stay on ground. vs doing a wheely.
below are just various links, that may give you something to think about. along with looking up specs, of various sizes of how much they can handle.
Pickup Truck Cranes + Truck Jib Cranes | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
Mounting Frames | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
Manual Cable Hoists | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
Manual Gear Chain Hoists | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
Manual Lever Chain Hoists | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
Hand Winches + Boat Winches | Winches | Northern Tool + Equipment
Beam Tongs + Lifting Tongs | Hoists, Lifts + Cranes | Material Handling | Northern Tool + Equipment
above link. tongs (there is better name for them) for putting on a log and hooking to back of 3pt hitch directly.
Vestil Winch Operated Truck Jib Crane — 500/1000-Lb. Capacity, Model# WTJ-2 | Truck Cranes| Northern Tool + Equipment
if i could find something like above, as a 3pt hitch boom pole. you would have to pry it out cold dead hands.