I know you've seen more than enough threads asking "what camera should I get" etc. But I'm more so looking for a budget used camera (~500 mark) with similar footage to something like a HVX/HPX/HMC. I'd love to buy any one of these, but P2 cards from what I've heard are 1. hard to come by and overly expensive because of that and 2. hard to work with. What're some solid options to shoot follow cams but also pass off to the homies if I wanna be filmed as well? I'll attach some videos below of the type of footage I'm really looking for. I usually use Premiere Pro for editing and have a PC that runs decently well but I've never taken footage directly off a cam and have pretty zero experience with anything other than SD cards.
https://www.youtube.com/watch?v=tuHj0Dj_-28&list=PLnIzbh-WuT6EFmmNh0e7cRiWdneuhsUGp&index=33 (I really like the look of the fisheye at 0:19)
https://www.youtube.com/watch?v=T78AsFXI5zM&list=PLnIzbh-WuT6EFmmNh0e7cRiWdneuhsUGp&index=31
https://www.youtube.com/watch?v=jOOt6KatDBE&list=PLnIzbh-WuT6EFmmNh0e7cRiWdneuhsUGp&index=27
https://www.youtube.com/watch?v=7Kt01Qzx6SA&list=PLnIzbh-WuT6EFmmNh0e7cRiWdneuhsUGp&index=26 (shots like 1:56)