I'm almost ready to begin reassembly. So you are correct, and yes I am a mechanic (industrial machine repair).
Taking the bike apart isn't hard at all...putting it back together is another story. With a service manual and parts book everything is already laid out for you (as far as what goes where and order of reassembly). So it's hard to get too lost.
But for the non-mechanically inclined this may be more than you want to get into as a 1st project. Tools are costly! You wont need any specialty tools, but a lift, torque wrench, and all the misc. sockets etc. will add up to a hefty sum if you don't already possess them.
Starting out on something less involved would probably be best. It can be very disheartening if you aren't able to finish something you were intent on accomplishing, and it would allow you to build your skills/knowledge up to a point that this wouldn't be such a monumental task. Unless you've got someone you can lean on like a friend or relative that wrenches on cars/trucks who'd be willing to lend a hand/tools.
Why do you want to repaint the frame?