I'll just throw this out there for you to chew on. Every now and then the front blowers do come up for sale used. Even if you ended up buying the subframe / quick hitch new, you have several options on finding a used front blower. First, depending on the width you need to cover your tire tracks, you can use the BX blower, the B series blower, and even the big L series blower. They are all made by RAD up in Canada and the nose of the quick hitches are all the same. As an added bonus, RAD also makes , or made, the front blowers for Massey Ferguson and New Holland (as well as Honda and no doubt others)..... so you may find a deal on one in red or blue.
FWIW , I have the B2782 on my
B3030 and its a snow munching beast.. The blower is very stout. I have the hydraulic chute rotation as well as the hydraulic chute deflector and its a joy to operate. I have had a rear blower in the past and I wouldn't go back.