My neck ain't that flexible anymore. Good thought about a front blower decreasing the functionality of the tractor. It would be nice to have the bucket and the grapple available without the hassle. I experimented backing the whole drive way and I guess I could do it although really not very comfortable. I wonder if it's possible to use mirrors which I don't have on my tractor? My new tractor will have a heated cab and big mirrors.
My advise is go sit in the tractor that your looking to buy and see what lookin back is going to be like. In my Kubota
M7060 which is a utility tractor and bigger than you are considering,
There is not room enough in my cab to turn yourself much in the seat due to the fender liners of the cab interfering with my knee. You should also take note of how operating the HST pedal will be. I tried the camera/monitor for backing and didn't work all that well. Mirrors were probably better. How useful those are has a lot to do with how defined the edges of your road are. Mine can be hard to see, and about half my blowing is done in the dark. I blow about 3/4 mile road about 16' wide with an 84" Woodmax. That blower is now mounted on the front. Our Wyoming snow seems to always be on the move so drifting is why I use a blower. I was a little leary of a rear pull because wind blown snow can get hard enough that the tractor can ride up on it. Wasn't sure if a rear pull would stay on the road surface or ride up with the tractor. That could have been remedied by using the loader to break it up I suppose.
From having read a lot of these post, everybody's experiences are different. If it's in the budget and you can justify the cost of the rear pull or front blower that is my recommendation. If you need the loader in the winter go rear pull. If you don't have neck issues a 1/4 mile drive doesn't take that long to blow and if your road has well defined edges you can probably get it done with mirrors or camera so the conventional rear blower would be more cost effective.
HST work great for close quarters and being able to match speed to conditions. Mine is hydraulic shuttle and I have to clutch at times and change gears at times because I can go from 3' drift to bare ground in 15'.