Hi there again, just to update the post and to help others that may have found the same doubts.
I find there is a nice affordable solution haven’t tried it yet but, based on reviews it seems perfect.
Presonus fire project, it has many mic and line entrances, you can mix them in a laptop or desktop, it includes the automixing technology, by using gates on the sources, below pre adjusted level. And also is capable of delaying the outputs so you can sync with the atem. I will run it with a mini midi/usb control interface, that as all manual adjustments and is very cheap.
It may require some learning curve but having all the needed tools in one rack space is great.
Also folowed Gary Adams advice by changing my ordet to the 4k version of the atem is is almost twice the price, but it offers more expandability on the analog and formats supported and more future proof all around.
Question is for the small cameras compatibility (Panasonic HC-V250), because I’m also buying an Sony PXW-X70 some more money was available for the setup and need to find if they will be compatible together.
And ultimately what media pool software do you guys recommend for laptop hdmi feed to the atem, was looking in to open source free options tried some in my current cpu but not quite pleased. Vmix free version is very easy to use but is limited to SD resolution.
Thanks a lot to you all and really appreciate your time and wise words.
PD.Sorry for my english