C. Crane is a company that deals in radios and radio accessories. They have a wide range of equipment, and most of it is modestly priced. I've bought a good bit of their gear, mostly radios and antennas, over the years and have been well satisfied. You can download a catalog, or get a free paper catalog, at their web page. Here's the link.
The new Lehman's catalog came in the mail today. It specializes in 19th Century technology. I got most of my "grid down" equipment from them. Washboards, washtubs, wringers, lamps, and a lot of other things you don't need until the power goes out. It's a beautiful catalog, not cheap to make but free to you. If you go to their home page, you can either download a copy, request a free paper copy, or do both.
They have a lot of products you can't find elsewhere. For instance, I got a two gallon well bucket from them. It's not what it sounds like. If the power fails, you can pull the submersible pump and the pipe from your well casing. This "bucket" looks like a torpedo. You lower it down to the water through the casing, a valve opens, and it fills up. Then you pull it back up. Kind of a last ditch nice to have item.