This is, in many ways, a business like any other. And of course there are ways that it isn't.
As with other performing arts industries, you'll be dealing with union labor. Sets, makeup, hair styling, costumes, talent, lighting, catering and scripts. Even the cheapest and most seemingly unscripted porn has something
in these areas. Of course there are ways to do this on the cheap like anything else. But it's going to be a lot more noticeable in this area because it's such a visual medium. After all, if the lighting is bad, your audience can't see the performances, right?
And in the adult films industry you will also need to have a good system in place for assuring that you are only working with persons who are over the age of 18. Unless you're comfortable with being arrested for contributing to the delinquency of minors. Might want to be sure you've got access to a good legal department while you're totting up your costs.
Do yourself a favor, and instead of thinking of it as porn, think instead of cheap videos. What makes one more compelling versus another? How can they stop being laughable? I'm not talking about the one in a million viral videos you see. I am talking instead about amateur productions. Go on Youtube and look for fan films, for large fandoms like Star Wars, Star Trek and Harry Potter. Some will be far better than others. Explore what makes one better than another. It is not exact; this is an analogy.
And then see what it really takes to put on a decent film with a virtually zero budget. Because, until you get industry connections, you're not going to be able to command much in the way of budgets.
As for how you get your talent, how else? Advertise in a trade publication (probably something like Variety
). How are they interviewed? By the director or producer, I imagine. Do you honestly think you're going to be doing 100% of the behind the scenes work here?
How much will it cost you? Where's the industry going? Will you make decent money? No one here can predict the future. But like any new venture, the ramp up costs tend to be large, but they can be spread out over time if the business survives.
Keep in mind, you are talking about starting a new business. Forget the trappings. This is a new business venture, much like if you were opening up a tattoo parlor or a coffee shop. And new business ventures, everywhere in the world, more or less since the beginning of time, have very high failure rates.