Schematics for Sherwood RX-4109

I have a Sherwood RX-4109 that I would like to use as a preamp for a LM3886 project I'm doing.I need to use the remote controlled source and volume sections.I would also like to do some cap mods to clean it up.

Any help with some schematics would be greatly appreciated.I've done a search and didn't come up with anything.