Thanks for your reply. Firstly I note your prices quoted are in dollars so from that I assume you are in USA or other country using $. I’m in the UK and I’m not really ‘with it’ on converting money. When I wrote I kept in mind I had no idea of the budget you had in mind so I will accept that the NX3 (and similar) might well be above what you can afford.
I only do my video work as a hobby although years ago I was a pro still photographer. (Weddings, portraits and all the usual stuff) I will also mention that I’m well into retirement years now. . .(shsssss)

Whilst I love using the NX3 I will say that it’s quite heavy for general hand held work and for your type of interest it might be too much after a while. I use a monopod for those times I want to move around a lot. So we will forget about this type of semi-pro gear.
The one reason I got the HCX920 was that it’s very small, compact and light by comparison. It also has just about all the facilities of the NX3 but not so easy to get at because many things are hidden in the various menus. By facilities I mean manual controls in addition to all the auto functions. It has a very good reputation for the quality of the video produced. It has an input socket for the addition of an external mic and headphones should you need these.
I have no experience of the FZ1000, although I have a Canon still camera in the same sort of shape if you get what I mean. Being so used to the, what I call, ‘normal’ video cameras I don’t think I would be comfortable with the DSLR type of year, but that’s just me. I do know that many folk recommend using this type rather than DSLR especially as 4K is not really necessary (as yet), as most folk don’t look at videos on large TVs where the super quality would be appreciated. Tablets, phones and You Tube etc. are they ways most folk view videos.
I don’t know if you are editing 4K video, but if not, then be aware that a quality Hi Spec computer and editing software will be required. Most likely costing more than a camera.
I appreciate all what you say about the cost of the ‘better’ cameras but as I have said, my HCX920 has almost all the advanced facilities that my big NX3 boasts. I have looked on-line at the specs of the FZ1000 and it’s certainly impressive. I have also read several reviews and what folk have to say. Whilst there are many ‘pros’ there are several ‘cons’ including the long learning curve with all the facilities buried deep in menus that really mean carrying the manual with you . . . It also seems that some buttons on the back can easily be pressed inadvertently. I’m sure you won’t need telling to have a proper ‘hands on’ before parting with your cash.
My personal view, if it was me, is to try to find a S/H video camera such as the HCX920 (there are certainly others). Unlike the days of camera’s using Mini DV tapes, the modern ones using SD cards don’t have the problems with tape drives causing problems after time.
Cheers. Pete.