A fellow Manitoban, here, SE corner of province. Have been using my B2650/B2782B front snow blower w/hyd. chute since December 2017, my 300ft driveway and about 60ft x100ft parking area is all gravel.
I also foray into a few fields trails and a bush trail with the blower as needed, we do lots of walking, dog walking, all winter here on this 116 acres.
I always have my BB1560 box scraper on the 3-point when the blower gets mounted. Not only a great ballast, but a very useful close-quarter snowpile-mover. I pull drifts well away from my garage door wall, etc., with the box, then hit with blower from safe distance. Scrapes up ice way better than the blower's bottom edge too.
Get yourself a 4l jug of winter weight chainsaw chain oil to regularly lube the drive chain. I use a 1 litre squirt-nose (has a tip like a caulk tube tip, and cap, was a 80w-90 gear lube container) for a chain oil bottle to throw in the tractor tool box, give the chain lube hole a little shot a couple times a day.
I just wish it snowed a lot more last winter! I have a lot of fun moving LOTS of snow FAR AWAY from the driveways FAST.
The hookup of the subframe and blower takes some getting used to, I've gotten it down to as little as about 20 minutes once the loader is off the tractor, but plan for it to take longer than that. I don't have interior or otherwise concrete floor space to be able to use a dolly or floor hoist to position the frame correctly - and it's fussy - and heavy to handle too.
And when it's time to check the drive chain tension, it's easy to over tighten that chain but still think it's within the operator's manual free play spec. range. The key is it needs that free play for the WHOLE RANGE of rotations of the drive sprockets and chain, several full rotations where no point is tighter than the spec. The assembly does not rotate perfectly evenly and the chain free play changes slightly through a few rotations, and with temperature changes, too. I overtightened a bit, and you can really hear the chain noise increase.
My point, leave it a little loose if anything, and don't tighten it much if neded.