Hello, I'm new to FPV. I'm only flying in simulation. It's time to collect a quad. I have a 2-inch device in mind. It says that it is designed for the newly produced Lumenier QAV PRO NANO.O3, but I am thinking of using caddx vista or naked vista. Do you think it is possible?
Thanks for comments..

Anything is possible. Just do the research.

Why don't you buy something that is RTF for starters. Don't bother building until you are ready to build. To be a builder takes a very specific mindset and a certain amount of knowledge that a person just starting out won't have. I can pretty much guarantee if you go down the building route it will be a difficult process and you will probably spend a number of days or weeks trying to get things to work, ultimately ending in you either getting it working or thinking really hard about selling up and quitting. Better to buy something you can go fly, while you learn all the things that are needed to build and configure quads.

If you do decide to carry on regardless, you need to start watching everything on YT regarding Betaflight configuration, ELRS or Crossfire or whatever Control protocol you intend to use, how to choose parts and the actual specific of building a quad, soldering basics and how to use flux, anything related to using DJI, ESC Configurator, At least then you might have a chance.