A little update, I went away and bought the script. The installation was very simple and was done in 10 min. The script has some nice features like having premium sites on top of regular listings etc. The only thing is the template system the script has, but after playing around with the layout I think I will get to do what I want with it.
Anyway, you can see how I have set it up by default here,
http://www.baresiren.com/porn-links/