Furnace is basically dead in the middle of winter. I'm in Connecticut and need to decide fast.

AS the title says, its the middle of winter and this old unit is over 20 years old (just moved in a couple years ago) and probably has had no service. The ac unit cant refilled as the its R22 I think and illegal now I am told.

I was quoted yesterday (pic attached) at 16500 for the house (1500sq ft).

Is this a fair price or should I call else where?