Man, you guys are the best. Thanks so much for the help/advice.
I was considering this:
https://www.amazon.com/SSR-25DA-Auto...id+project+box it's an almost complete kit for $31. Only thing missing is the terminal block and a heat sink for the SSR. Well, that and a box to put it in. I have a very old computer case that might work. I'ts a bit large, but that way I can put in a bunch of fans if needed to keep it cool in the desert south west during the summer. I could mount the PID controller in one of the computer case's front plates, then the rest of the stuff in the body of it.
I'm actually doing pretty well on finding most of the parts I need, but I have yet to find a decent terminal block. Any chance someone could link to a good one?
@Mike W1, the first link for ebay pulls up a bunch of weird stuff... Men's cologne, T-Connectors, ignition coils, in-line fuel filters. 2nd and 3rd links pull up some weird stuff, too. Must not be any matching sales for those searches currently on Ebay. Darn it.
@10x, any chance you could link to the parts you used, especially the terminal block?
I will be buying the TC plug connectors. I'll also be adding a wall socket type plug so that the unit is completely portable.