How expensive can it be?
I just randomly looked at Railway and for $20 a month you get a whole lot. I've hosted many a web project (successful personal projects and enterprise projects alike) and I don't see a large barrier to entry on "hosting a website" here.
Blocking AI scrapers and crawlers is not a huge ordeal. Planning for a unicorn before just putting a product up isn't the way to go.
> Blocking AI scrapers and crawlers is not a huge ordeal.
If you have content they want, then it is a huge ordeal. You can pay some one like CloudFlare to take care of it for you, but if you can't or won't make a deal with those types of companies, it's going to take up a significant chunk of your time.