Damaged aluminum siding
The "zip" tools prevalent today ("Sideswiper II" by "Malco"), that are available
in Big Box stores and siding supply stores; are really intended for Vinyl
I used to have "zip" tools for aluminum siding - the difference between the
two is the thickness of the hooked metal - the old ones were "spring" steel -
thinner then the ones out there now.
We used to put wax or oil on them - they would slide easier.
Using them on aluminum was usually a two person job and we used 3 or
4 "zip" tools - aluminum doesn't flex the way Vinyl does.
How difficult it will be, also depends on the thickness of the aluminum -
.019, .024, etc...