I will include a surprisingly well-written instruction sheet, but rebuilding a receiver is fairly complicated, and you should know what you're doing and have a decent soldering iron, heat-sink compound, and a dim-bulb tester.
I have rebuilt a lot of SX-850s and 950s in the past few years--they're really nice receivers, and aren't too bad to work on.
Please see my pictures for details.
US shipping and handling is $12, and international is $28. If you have any questions, please ask.