I bought the Frontier SB this winter, I used it a couple of time and it was great to have. It is simple to swap between the blower and the loader. The set up was not cheap but simplicity is nice.
as you saw with bucket, it's not really ideal for
a lot of snow removal,
what's wrong with the JD 59 blower for the
front of your 3720? easy to install/remove,
and moves the snow once and done.