That's funny that the 1" lever is $3.15 but the 3" is $1.85. I was sent the wrong lever length the first time when I ordered my replacements, so I just cut the lever shorter with a hack saw. Works fine and has for the last 2 years. I guess if you can't find a better price, you could order the longer ones and cut them down?
I couldn't find that part number at Mouser or Digi-Key, but I didn't look too hard.