Heheh, you've done the same things as me I see!  
Ive also emailed every collector out there with 
any Nuriko cels offering as much as I can for 
one, in most cases VERY high amts of money.  But 
I've also been turned down by each person, even 
offering twice as much as the cel is really worth 
wouldnt do it. I also keep an eye on KT and the 
forum, Ebay, and YJ all day, and most of the 
night.  Nothing.  But I guess good 
luck.....there's an aweful lot of competition out 
there sadly.  Hope you get there before one of us 
does next time ^_^.  You deserve a cel