On a trip to Lowe's yesterday Mary saw some metal fence panels which resemble the vintage wroght-iron we have across our front yard. It's not a perfect match, but the tines profile is the same, and it has gates, too! $300+ later, we had purchased enough panels and gates to enclose our front yard, meaning we can sit out there with the dogs and not worry about them making a dash to the park across the street!
The only new part in the photo below is the gate, which blends in nicely.
On the left is the antique fencing, and from the gate to the right is the new.