Build your own ladder hoist with 24'/32' ladder and 800lb hoist/lifter 

2 - U-BOLT ZINC 5/16 X 5-3/8 2X$2.05
2 - EYE BOLT/NUT ZINC 3/8 - 5 2X1.10
4 - HEX BOLT ZINCE/NUT 1/2 -1-1/2 4X$0.99
4 - 1/2" FLANGED BEARING 4X$2.50 (XiKe BEARINGS) from Amazon 1/2" x OD 1-3/4" x Width 1/2"& 7/16"
5 - Partsam 440 lbs Lift Electric Hoist Crane Remote Control Power System, Zinc-Plated Steel Wire Overhead Crane Garage Ceiling Pulley Winch w/Straps (w/Emergency Stop Switch)