Thank You all for the advice. It became more clear how to move forward.
1.
I absolutely agree with the slogan of Mr. Gavin "Quality in, quality out" regarding the feeders for the snake. I already made my own setup of DIY rack for rats, giving them food high of protein, low on fat.
Quality of the snake... now how to measure that?... cause one could be for myself a beautiful hatchling, but in others eyes just a garbage.
2.
Youtube videos - Yes, I thought about it, as no one is up there from my country yet, but first I will start with a facebook group. My logo is already under construction
3. Currently I'm keeping records on papers. Feeding, shedding, weight, breeding, any suspicious behaviour. In next months I'd like to move to electronic format.
What Software do you recommend? I've heard about ReptileScan, HerperPro.... anything else?
4. Taking Pictures - What are You using for taking pictures? Like a mini photo studio box and additional lights etc... I'm thinking about Nikon Coolpix B500.
5. About the bad part... If your snake dies... what You do? You keep another pet you feed it with, You take it out to the woods and dig it etc.