Don't rule out AId lenses! Single-coated pre AI lenses are my favorite Nikkor glass, and they are super cheap compared to AI and later lenses. An AId lens may go for less or may go for more than an unmodified pre-AI lens, depending on which way the wind is blowing, but one will almost certainly go for less than an AI or later version. If lens speed is really not important to you, I'd go for the slowest one you can get, as it will likely be the cheapest, and will be just fine in quality.