Heya! I love Saiyuki to bits as well (can't wait 
for the movie...I hope it resolves stuff from the 
end of the TV show! But I doubt it...;_;) and 
researched htis a long time ago. It's computer 
animated, so these most we'll see is gengas and 
dougas, other production drawing, but that's all. 
Some repro cels are out, and they can be found at 
Usagi's House (www.usagis-house.com) or probably 
at a lot of places in Japan. Hope this helps!

Ja!

-Misha-chan