Hey there everybody.  I've just recently found out that there truly are cels from Senkaiden Houshin Engi.  I've only been able to find a few of them at Anime Taro, so if you might have any other idea where I could find them, please let me know!  I'm in the process of adding Tai Kou Bou to my cel wishlist, but below is a sample image of him.  Please feel free to email me!!  Thanks much!