The easiest pair to use, considering the arthritis issue, is the pair that someone else is using. It is difficult to hold a jabbing hind leg and trim while kneeling. I got mine from Tractor supply for under 20$ and they work just fine.
Have a true hermaphrodite goat, 4 yrs old. Her front hooves have always been a problem to trim. Doesn't have much of a "frog" area, the walls roll sideways in a very short period of time to the point where the inner half of each is longer than the outer and extremely tough. Can't trim them with...