I agree with troutstreamnm....take a breath. Look at all you have done, from where you started to now. I remember sitting outside my garage at night throwing a few back with one of my buddies just bsing about how fun this thing was going to be when its done.
As for the rusted wiper arm mechanisms there are a few things you could do. If it is surface rust just hit them with the DA and whatever you can't get with that do it by hand. I have access to a small sandblaster (you could pick them up at Harbor Freight for nothing) and just sandblast them and the other smaller parts as you finish the build. If you never sandblasted before, it is a messy job, but gets the job done well.
