Ok guys this will probably be my last update on this thread. I'll probably start a new thread for further updates under a better title. Any way, I found the pin for the slave cylinder. Actually, I just found a random one laying around that worked great. So I guess I was wrong about it being a screw. Here is what it looks like now.
I still need to clean up the wiring and figure out how to do away with the evaporator and surrounding box. I was able to get the truck running well but some ignition upgrades are in the future. More on that later.
At first glance everything seemed ok but after driving to work a few times (roughly 20 miles each way) I realized Its leaking quite a bit of oil on the driver side. It seems to only be leaking when I'm driving. When the truck is just sitting or even when I run it in neutral it doesn't seem to leak. It appears to me to be coming from the oil dipstick tube, where it goes into the block. I pulled it out and tried a dab of RTV but it's still leaking. I may reapply a more generous coat this weekend when it has time to fully cure.
I also got a chance to inspect the ignition system and wiring more closely in an attempt to clean everything up. I found most of the connectors have corroded and bare wire and some are missing the insulation completely
After this discovery I decided to hold off on wrapping up the harness until I address the issue. My solution is an MSD 6A ignition box and blaster coil (arriving tomorrow) with all new wiring.
So here is a picture of the header after about 100 miles. Its been smoking like crazy burning off the shipping paint. Also I deleted the factory heater pipes and mess of hoses and opted for two directs hoses. you can also see a couple bare wires I wrapped in electrical tape for now.
In this pic you can see the wire traced out in yellow is completely bare. It runs from the distributor to the ignition box. Also, in green you can see where some oil built up on the driver side mount and also it's spraying onto the steering shaft.
You can also see where oil is pooling up below the dipstick.
Other than the oil leak and crappy wiring all else seems ok. If anyone has advise on either of these issues I'm open ears.