Short of raising the road about four or five feet, I can't see how a blade could cope efficiently with a succession of storms like that ...only chains and a blower ...3ph is fine and cheaper, and you still have the use of the FEL.
I have an 8' fully hydraulic rear blade and an 8' plow blade on a QA, but for snow like that I'd put on my blower.
Depending on how many such storms you get in succession, even a plow truck would be challenged once the snow banks are as high as the blade ...unless (a) you have a wing, or (b) you have good enough footing the shoulders so you can plow really wide, or (c) you redesign your road in a series of zigzags so you can push the snow straight ahead of each road segment.
In a windy clime like yours, a single storm is the equivalent of several (as you found out) because you create a catchment for the snow. To mix metaphors, you will be moving all the snow from your windward field to your lee ...and that's a lot of snow because you have such long "fetches". As several have noted, windbreaks are the proven answer ...or, an elevated roadbed where the wind is your friend.
Finally, get to know your neighbors and find out what they have found to be successful ...this board has a lot of advice, mostly good, but local practitioners may give you the best advice.