I'd like to suggest tat you look around for an older hacksaw frame with a straight handle, like a coping saw. I have a couple, and I like them for light work, like cutting a dovetail slot for a sight.
If you find one, make sure it will fit a 10" or 12" blade, or it's adjustable to fit those lengths. Some of the older ones were made for a 8" or 9" blade, which are hard to find.
Rick