I know that Will had a plow on his BII and ran air bags in the front coils.
Yep, still have it. But the ASV track loader I bought a couple of years ago came with one so I don't plow with the B2 anymore.
What I have is a huge, thick, steel plow about 7' wide. It has to be close to 500#. When it's off the truck, you can't budge it or even shift it by hand. I built the mount for it up high so I could still wheel the truck without removing the mount. I used the winch to pick it up like an ATV plow, and it has manual left-right swivel. I plowed the church parking lot and a few other rural drives like mine. You definitely need the bags because picking it up totally flattens the front suspension--especially considering how soft my springs are.
The only problem I had with this heavy as hell plow is that the front, left wheel nuts unscrewed themselves. I lost the front tire on the left side twice before I learned to jump out and tighten it after any length of a drive. With a lightweight plow, probably no problem. The light-weight plastic ones would be an ideal step up from a riding mower with a blade. What I like, though, is a snow blower. I used my dad's once and it was lovely. One thing a plow sucks at is that it pushes the snow up, but doesn't send it away. If you plow very much, or do the same drive on several snows without any melt, you need a loader to stack the snow. A blower sends it all into the neighbors yard where you don't have to worry about it anymore.
With gravel, a snow blower is the best. You might machine gun some gravel, but with a blade you end up pushing it off the drive. I've used a garden tractor, a truck, a wheeled Bobcat and a track loader and they all share the same imprecise feel for the gravel. I only plow if we can't make it. Before that, I run over the driveway a bunch of times with the track loader to pack the snow so it doesn't hit the bottom of the car. I'm the same with mowing anymore. I don't keep up with the Jones. I'm not after pretty.