Perhaps I'm missing something here, but perhaps not. Checking the links provided with each module takes me to a website where there's no information on availability, pricing, and so on. The MG listings show prices and claim availability, but the actual company website doesn't seem to indicate...well, much of anything. The module listings there seem to all link to a Github site...while at the same time, some of those same MG listings show those same modules as being available as a prebuilt module or DIY kit.
In short, this is a tad screwy. Perhaps the user who posted these can clarify things?