I am new to snowplowing. I have a small pickup truck and would like to get a Fisher 6'9" plow. I am not sure if I should buy new or used plow. I wonder that if I buy a new plow, and if several years later I decide to get a bigger truck, would 6'9" still be able to fit in? I would need to get a different brackets, but still would this small plow be able to fit on larger truck which manufacturer recommend like for example, 7.5' plow?