I installed the scarifiers on mine this weekend to breakup the ice from a rain event last week. Helped with the driveway that had turned into an ice rink.
box blades work pretty good for pulling snow forward from garage doors and the like plus if you plow forward with the bucket then just drop the box and plow in reverse. A tractor with a stout 3 point is probably a good idea though since pushing on the 3 point arms in reverse puts a lot of strain on them.
Double bladed Boxes should plow in reverse much better than a single blade box.
I switch between using my GC1710 with a box blade and FEL and my Cub Cadet walk behind blower for snow management. The box blade does a better job of not pulling up stone on my gravel driveway than the blower as it floats on the rear blade as I drag. Even with the gauges on my snowblower they are narrow and sink into the stone causing my blower to start scooping up and spitting out some of my gravel.