I just specced out a B camera rig based on the Sony RX10ii combined with the K2M XLR mic attachment. It shoots 4K if you need it, HD if you don’t, and has a 50mbps XAVC-S codec that’s capable of slog2 if you’re into grading. 24-200 f2.8 constant aperture fixed lens, which is pretty much the perfect range for most video. It seems like a really nice little rig, and at $2000 for the camera and XLR attachment, that would leave you some room in your budget for lights, tripods, wireless mics, and maybe even some sliders.
It’s much cheaper than an A7sii rig, with most of the things that I’m interested in out of that platform. Take a look!
I know you’re interested in Canon cameras, but right now, even as a lifelong Canon fan, I am not at all excited about their video platforms. The C-series are overpriced and under-specced, and Sony has some unbelievably powerful options for mind-blowingly low prices.
If budget is really not an issue, the other camera you might look into is the Sony FS5. It’s bigger than the RX10ii, but is a full-featured lightweight cinema camera, and can take any lens from Sony’s native lenses to Canon’s L-series. An FS5 with a Metabones Speedbooster and a Canon 24-105L will go a looong way towards making you happy in the long term. But it will cost quite a bit more.
As far as bang for the buck…go with my first suggestion. If they decide to hand you the keys to the vault, get an FS5 or FS7, even 🙂