H Xelot,
As a so far pretty unsuccessful adult webmaster I can maybe give you some advice so that you don't make the same mistakes I did.
Firstly, think well about how you are going to promote your site. How will you drive traffic to your site? An affiliate program is probably a must.
Once you have the traffic, it has to convert too. What makes your site unique and why will people subscribe? You have your own content, so that's already an advantage, you can adjust your course a bit while you're going.
I can't tell you much about the number of members/revenue to expect, but I wouldn't expect too much in the beginning. Maybe some more successful webmasters can give you an indication for that.
That said, don't let me discourage you. Starting an adult site sounds like a great way to overcome that mid-life crisis
Good luck!
PS: Gary Lee, I wish someone would start a site like yours in my town. I wouldn't mind seeing that girl from the gas station in a different setting
