32" is not at all uncomfortable for my Outback. I have not tried 24" but that makes sense too.
You can buy a 3' gaff on a wooden pole and cut it down to whatever feels good to you.
Squidco has simple wood pole gaffs for reasonable prices.
http://www.squidcofishing.com/WOOD-HANDLE-GAFF_c9.htm
Squidco prices are so reasonable you can buy both and keep the other as a backup, or give it away as a gift.