If your looking for hardware components, adafruit.com has many prebuilt modules that are (mostly) usable without soldering. There's also sites like thepihut.com that sell similar things but from other manufactures too. There's also mouser but that's just for the individual components which you would have to construct a circuit for yourself.
If you have no or very little experience then you'll likely find it more difficult than you expect, make sure you know what your doing and try to find exact instructions for everything. Basically don't try to design or modify things yourself.
No, I think it's a good idea but I'm fine with plant based alts. I think it's a lot better than having to kill animals for food but still seems like a lot of extr steps when you can just eat plants and stuff mad from plants without requiring a biological reactor, and lab. I would also assume that the process requires at least some more energy or resorces than regular food processing methods. So it wouldn't win any points on that front. I was raised vegan for context, so I've never actually tasted real meat and don't see any reason to try it now, lab grown or not.