I had no free buckets to hold the derusting solution in that the vise would fit comfortably, so I had to use a plastic box that was too wide. It would not submerge fully in the 1 Liter of derusting solution I bought, I had to soak one side for 24 hours and then the other side for 24 hours. It mostly cleared the rust. I’m considering painting it now, but I don’t think I’m going to.
You should definitely paint all the surfaces that aren’t machined, as that’s very likely how it would have been originally.
Also, what’s dull about restoring a tool? There are entire YouTube channels devoted to it that are pretty darn popular. (Or so I’m told, as I would surely not watch something so dull myself. <AwkwardLookMonkeyPuppet.jpg>)
I am sincerely apologetic of posting content that you found not to be dull enough. I will try to be better in the future. Tool restoration indeed is interesting, but I thought merely soaking a tool in deruster for days would be dull enough :(