I’m a little confused. The OP only has three acres, if I read right, and will primarily use the tractor for fork work and snow blowing, with some driveway maintenance.
Fork work is definitely not a high power application. Strictly loader capability and tractor weight. Power just isn’t a factor.
Road maintenance is a similar situation. After a certain point, traction, which is analogous to tractor weight is the most important factor.
Snow blowing can be a power hog. Having said that, my 40hp Kioti CK4010 handles our 300” of annual snowfall quite nicely.
Bush hogging deep grass on 100 acres, or plowing virgin prairie would take massive power, but come on guys, he has three acres.
My recommendation would be that, for the property and work profile he described, he take a look at the slightly smaller DK series, and consider maybe going to one of the middle power ratings on that frame.
My only real issue on my CK 4010 is that the slight hump on the floor is a little unfriendly. A bigger tractor comes with a flat floor on the cab models.
Also, don’t even think about not getting a HST for the type of work the OP described.
I hear what you are saying, and I personally thought the NX4510 would be fine. For what the plans are in the foreseeable future, 45 hp seems fine. It was always going to be a NX because of the slightly better loader.
But I have also asked everyone I know, including my other half, and here, and the consensus seems to be if you can swing the price, get more power / get the bigger tractor. I am also a regret factory, and I didnt want to say down the line, I should have gotten the better model. Factoring all of this in we decided on the NX5510. (But I still think the NX4510 would have been a good fit for us)