What is this going to be used for? What is your budget?
My guess is a GoPro 4 since that does everything you want except RAW. You are limited to what you can do, but it is rather cheap.
I think you probably do not need RAW. If you are on a budget for the camera, you will spend many times more on SSDs to shoot raw than you will on the rest of your gear, which is kind of stupid (spend $700 on camera and $3000 on SSDs). Also, RAW workflow is horrible. You need very high powered PC with incredibly fast disk speeds (400MB/s+). You then will need expensive software and a lot of time to grade. If you want a RAW 'look' then any camera with a flat profile will get you close without needing massive disk space and ultra high speeds. Cameras capable of this may be outside of your price range.
If you are doing events, then rent your gear per event basis. You will get $5000+ of gear for $400 and you will just have to factor it into your cost. As you make money, you can start purchasing gear. Also some events almost require a Sony A7S or very expensive primes as there is no lighting (weddings are an example). There is no cheap way to get good results in low light except using lighting, which is either not always allowed or very annoying to people/atmosphere.
If you are making a short film as a hobby, then look for a used Sony e-mount like NEX-5n/r/t. Those should run around $300 and have a large Super35 sensor. You can then adapt pretty much any lens ever made to it (which translates to low cost vintage primes) and then be on your way. Just pick up some lighting. Watch record times as the sensors heat up after prolonged use, but for film making it should not be an issue. They can do 1080/60p which is 2.5x slow motion. There is also Panasonic GH3, but the cost is higher. The GH3 does not overheat and is a better overall camera, but smaller (but still very large) 4/3 sensor. Both cameras use mpeg-4 AVC compression algorithms and quality is excellent.
If you are doing corporate work, then you need a GH3/GH4 or an ENG/Professional Camcorder as well as a good tripod. Other cameras do not have the record time necessary for this.
If you are doing youtube videos or just home movies, use a cellphone. They do 1080/24p and do slow motion up to 10x (that's 240FPS). Some do 4K and quality is excellent as long as there is adequate light. You have limitations, however you are not making money, so there is no need to invest lots of $$$ into gear. The GoPro would work well for this however.