There have been a couple of threads on here and some other tractor forum about taking an old truck snow plow blade and adapting it to the FEL. Several people have successfully done it while others have warned that a truck blade might be heavier than ideal for the front of a tractor.
I have a 3520 with a 300CX FEL. I also have Artillian forks and the heavy duty frame.
I came across a couple of "candidates" locally for a snow plow project. One is an old 6' Western plow. It has the frame, but is missing the hydraulics. From the pictures, it looks like it might also have a "rust issue" along the cutting edge. The guy is asking $300 for it, but I'd have to sink some money into it for a hydraulic cylinder, etc. Also, from what I can find, I think it weighs somewhere around 650 lbs.
I also came across a 69" blade that was designed for a Deere F935 and/or F1145. Here are a few pics...
I'm not sure of the weight of this thing but I'm guessing it's probably less than the old Western blade. But, will it be heavy enough to push snow on the front of my 3520? (I would not be using it for dirt/gravel/etc.)
I don't mind the manual angle adjustment. This one also includes the skids and the old Western blade didn't. They're asking $200 for this one, but it's about 45 minutes further away.
I'm trying to keep costs to a minimum on this. In all honesty, we never got enough snow last year to even get the tractor out and clear anything with the bucket. I cleared everything necessary with my single stage Toro. This year I haven't even gotten the Toro out!
I'm also considering just buying a snow blower attachment for my Gravely walk behind. There's a couple around here on CL for $3-400.
I have a concrete apron that's about 30x70. My gravel driveway is about 375 feet long. When we have heavy snow, I clear the apron with the bucket and a piece of ABS on the cutting edge. I think in the 4 years that I've owned the tractor, we've only gotten enough snow that I felt compelled to do something to the driveway maybe 4 times. I used the FEL and my rear blade for that. (I might just buy some EdgeTamers for the FEL). I didn't like using the rear blade due to it picking up gravel in spite of the ABS pipe that I tried to mount to it. So, you can see, a front blade would be not used all that much.
If I buy a blower for the Gravely, I'd adjust the skids up high enough to avoid picking up gravel.