WTB: Muffler / Cat combo in need of work for late Mexican Beetle

I want to do a little performance experiment with one of my '04 Mexican beetles with some head work, ratio rockers and a few other tweaks.
I'd like to find a junk / damaged / defective Muffler - Cat converter combo from a 93-04 Mexican air cooled beetle to use as a basis for modification by gutting the cat. I'm looking for something damaged or otherwise in need of work for not a lot of money as my wife will have me strung up otherwise :-) 
If anyone has one or knows of one please let em know.
Thanks
Darby Milnor  OldBugs@comcast.net