Ok, so I'm still working on this, but it's worse than before. Everything stopped working. I'm trying to at least get the fan to be always on.
Here's what I see. At the firewall relay, there are two connectors. According to my assembly manual (and what I think I see) one has a single black wire (ground, connected to firewall and blower motor), the other has three (large and small orange, always hot, large purple to blower motor, blue to fan switch in dash). I can apply + to the blue wire and make the relay close, I see + on the purple wire, but I don't get any blower action. This does not seem right to me.
Also, I'm trying to repair the switch. Here's a pic. Switch
The piece on the right is the slider part that makes all the contacts happen. The connectors on the back of the piece on the left are numbered 1 - 6. Problem is I don't know which way it goes together. Can someone explain which way I put this back together? Or, even better, while you're at it tell me (all of us) which connectors have + in the various switch positions? That would be a good lesson to learn!