I picked up a crane similar to that for $50.00 at a tool sale and mounted it in the back corner of my pickup. It is supposedly rated for 1000 lbs but I think that is optimistic

But it will lift a section of stone easily and it lifts the packer in and out of the truck. It will also lift a 24" B&B tree. My back says it is the best 50 bucks I have spent and best of all it only needs 1 person to go pick things up instead of 2 of us.
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Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways - Beer in one hand - Nacho's in the other - body thoroughly used up, totally worn out and screaming : Woo Hoo, what a ride!