Mr. Hoyt,
I think you'll find the
B3030 is a bit small and light for what you have planned. The Kubota L-series offers the weight and power you'll need for year round usefulness. For about the same money(?) as the
B3030, you should be able to get a gear
L3400; with a little more $, an L3400HST. There won't be as many bells & whistles, however. I think with your acreage and the weather in your neck of the woods, you could stand something more beef and HP. That plus the loader will be more capable. With the huge snowfalls you get in your area, you'll need all the HP and loader lift you can get to move snow over those big banks. The greater ground clearance of the L model will be a help as well.
On a larger acreage, like yours, I've found a little
B7610 to be a nice adjunct to an already owned
L4300. What one can't do (or can't do conveniently), the other can. But if it came down to a choice of only one, it would be the bigger unit. There are times when even that is taxed to the limit. With your snowfall, I'm sure there will be times when an
L4240 or larger would come in handy.
The
L3400 is what Kubota calls a 'basic tractor'. As such it doesn't have a lot of the neat features of the
B3030 or the Grand L's. But they do offer the functionality of the more expensive units at a good savings. If money's not a big issue, then the Grand Ls should be considered, but I'd look at the
L3540 and up for your work.
For the rear mounted snowblower, HST will be the best choice. You'll have infinite control over the reverse speed and can easily slow to a creep when it starts to bog while maintaining full PTO RPM. The lower priced gear units, like the gear
L3400, sacrifice the number of reverse speeds to keep costs down. You might find that your lowest reverse gear combined with the high engine RPM required by the blower results in a ground speed that's too fast for the blower. Same thing holds true when you're going forward and using the tiller; HST lets you choose the exact speed you need.
If you were in Virginia or Maryland and trying to manage 20 acres (or spent the winters in Florida), I'd say you could get by with the
B3030. But year round at your location demands more.
FWIW
Bob