I'm a hobbyist upgrading my setup.
Panasonic GH4 Used Once a month roughly for the past 2 years. Comes with Metabones Speedbooster Ultra x .71 and Sigma 18-35mm Art Lens. Speedbooster and Sigma lens hasn't come off of camera since I've owned it.
Also comes with Battery, and Battery Charger.
This is the ideal setup for anyone looking to upgrade their photography or videography. This setup is a staple for many professionals.
Can see how here:
https://www.bhphotovideo.com/explora/video/tips-and-solutions/how-emulate-super-35mm-4k-video-panasonic-gh4
Price Negotiable