I got the car pushed out of the garage and flipped on it's side Saturday morning.  I spent a good part of the day power washing the bottom and engine compartment, and they cleaned up pretty well.  Saturday night my brother-in-law came out and took a look at it and gave me some hints on what to do when, and how to do it.  In the process he gave me a ballpark figure for the bodywork I wanted done, and it was low enough that I decided to let him do all the bodywork, including the bottom and interior.  I was going to do the bottom myself, but I figure he knows what he's doing, he has the equipment, and has the facilities, so it just makes sense to have him do it.  We decided that the body in general is in worse shape than I thought.  It looks like the lower front right fender behind the front tire and the lower right fender in front of the rear tire are rusted through and will need repair panels.  These panels are quite inexpensive and readily available.  But the floorboards are the biggest surprise.  Both are rusted badly and will require replacement. Again, these are readily available and not too expensive.

Tonight I worked on scraping the undercoating off the floorboards on the interior.  I'm not sure if this stuff is really undercoating, or something else, but I found a good way to remove it.  I heated it with a heat gun and it softened up and almost pealed off.  I got the driver's side done, and most of the passenger's side.  When that's done, I'll work on the engine compartment, the the fender wells, and finally the bottom.
 

Here's a couple of shots of the car on the rotisserie sideways.

This shows the routing of the brake line, wiring harness, battery cable, and fuel line along the bottom of the car, in that order, top to bottom.  This shot was taken with the passenger's side of the car up.

 

Another shot of the routing of the wires and lines on the bottom of the car.

Here's the bottom of one of the battery boxes, showing the mounting of the parking brake cable, as well as the wires and lines.

This is the connection of the parking brake cable to the parking brake lever.  This look like a "McGyver" job.

Here's another shot of the mounting of the parking brake cable.

A couple more shots of the car on the rotisserie.

This shows where I've removed some of the goo from the driver's side interior floorboard.