I have a small pair of bolt cutters that work pretty good on cable.
As someone mentioned, Tom Morris (and I would expect Jim Snelson at CLC, also) sells handle cable.
The *Ted Fancher* handle from Carl Shoup is outstanding if you want to try a Hard Point handle, which you should try.
He has them in two sizes, the small one is about the same size as the E-Z Hot Rock and the bigger is lke the old, larger, E-Z Just.
Bob Baron's handle was in an article back 25, or so, years ago, maybe longer. it is *fully* adjustable, but I no longer know where that article is. It take s bit of work to reproduce.
Big Bear