When we had a PUP I always used the crank but it was an old school boat winch type of arrangement. I would think that if you bought your hubby an 18 volt or higher DeWalt 1/2" cordless drill that it would do the trick in low gear. Those things put out an incredible amount of torque and he would have to use the auxiliary handle.
Even if he can't use it for the PUP he will love you forever for giving him the DeWalt.
For even more love, get him the matching flashlight that uses the same battery as the drill...super handy around camp.
2006 23B Hybrid with 10k round bar WDH
2011 F150 4x4 SCREW Ecoboost, Max Tow, Integrated TBC, 3.73 LS axle, Firestone Ride Rite airbags.