Roland BC-60 overdrive in a pedal? Need schematic!

[dolhop]

Does anyone else out there have a Roland BC-60?  The tube emulation "crunch" setting on the clean channel is fabulous.  I'd like to duplicate that section of the amp into a pedal, but I'll need the schematic.  Does anyone have the schematic?  Roland wants about $20 for it.  I think this is the last great analog transistor amp to create a tube sounding overdrive and it would make a great pedal!