I don't think the regulators are going to be the hard part. The crank should be similar to the regulator just with a motor attached. I think the more challenging part is going to be wiring the relays figuring our where the best place to put it all. I'm going to pull the dash and replace the 87 with the 89 dash for round speakers and it's in better shape then mine anyhow so I have all the access I'll need. I looked at the repair manual and looks petty straight foward, not sure what the sub switch is all about but.. Thinking I can tap into the fuse box already on my harness, there is two unused spots.. Going to the yard tomorrow so I'll let you all know what I find out. If I do it I'll document the build too.