Robert,
I don't have any specific recommendations but I thought I might offer a few thoughts from my own stash of tools and parts.
One thing is that I don't keep all of my tools and parts separate like you are saying.
Electronics/Electrical, I actually keep parts and tools in the same tool kits. I have a small electrical kit that has snips, small meter, PC scope, resistors, caps, transistors, various chips and processors, magnet wire, bits of conductive wire, and other stuff that I use to do circuits and that sort of thing, and that is all kept together. I also have a larger kit used for electrical work that includes another bigger meter, an clamp on amp meter, random fuses, wire, ties, crimp connectors, crimper, and various other bits and pieces, and that is all together. Then I have yet another electrical kit that has antenna connectors, small meter, few parts, bits of wire, etc, that is used for portable amateur radio operation. I have another kit that goes with the bicycle which includes the right sized sockets and wrench for parts on the bike, tools for fixing flats, more bits of wire, etc.
I guess what I am getting at is that I tend to buy more than one tool so that I can keep the tool with the parts so it is all together when I need it. Like above, I must have five different multi-meters, each one part of a different kit, so that I can just grab that kit and do what I need to do without digging around looking for parts and tools. I also do it that way so that I can just grab one kit and take it somewhere if I need to use tools on a project that isn't on the boat, like if I am helping someone else. Socket wrench for example, I have a number of socket wrenches, one is in the bicycle kit that I grab and take with me bike riding, that way I don't have to pull tools from different places just to go bike riding. So I pretty much try to keep a kit geared to whatever tasks I typically do that has everything that I need to do that kind of task, be it electrical, wood carving, splicing and working with line, sewing, or whatever. My sewing tools are, of course, with the sewing supplies and include bits of cloth patches, thread, needles, sewing machine tools, etc, all in one place with a pair of scissors nobody is allowed to use for anything but sewing.
If I start doing something and I repeatedly catch myself pulling tools from different kits then I know its time to make a new kit specifically for whatever I am doing. That is how my bicycle kit was formed, I kept pulling tools from other kits to work on my bike, and then finding when I was out on the road I didn't have the tools I needed because they were back at home base, so finally I just make a kit for the bike and bought redundant tools.