Yea I've hunted this NM many times, sometimes 2 to 3 times in a day. He spawns roughly between 1hr and 3hrs. I've gotten the Fuma Kyahan one time with a lvl 48 THF w/ TH2 helping me. And yea they sell for about 100k (on Shiva). Problem is all the JP players know that it's an incredibly easy NM to hunt, so when they get on...don't even think about hunting it. The spawn area is small and competing with 3 or 4 JP's is futile. Good luck tho. (I'm a lvl 46 SAM-can easily solo this NM)
this is one of the easiest NMs to camp BUT... if there are ****, it needs to be right in front of you in order for you to get it. they all use turbo controllers so right when it spawns, they automatically voke/chiblast etc....
Luckily with the latest update, this is not really an issue, turbo controllers don't mean as much.
But I would recommend to anyone to camp this NM and not buy Fuma, providing you are at least level 45. The drop rate is faaaaar better than Ochiudo's Kote and Jujitsu Gi. You get a Strider Sword if you don't get the kyahan which is ok, I think it is like 5 or 6k on Caitsith.
Even with the update though, I still recommend Chi Blast all the way :P. Only thing that really beat me was Charm.