For my 2 cents the most cost effective is to use a 'el cheepo' 2000 lb ATV winch as found on EBay and many other sources.
Generally in the $50. is range.
You mount it vertically on the blower frame, shorten the cable to allow some 8 or so turns on the winch and one complete turn around the snow chute (much like the hand crank version).
The major challenge is to modify the cable attachment on the winch so that the shortened cable is attached centered on the winch drum, doable but can be a challenge to some.
Those winch kits even include a reversing switch!
On mine I drilled and fed the cable and then drove in a wedge.
Have fun and good luck.