Building my network of sites. Need some advice
 

I'm going to start 50-60 domains network of niched sites based on http://www.babecake.net/ classified content (not models, but niched content).
Like huge boobs site, blondes, interracial, groupsex, etc. Each niche - separated site.
We host sponsors photo fhg on our own, movie fhg are being processed by editor, but we link to sponsors fhg.

The main purpose of it is to do link trade and traffic trade with other sites and link network sites with each other. Thinking about the best way to do it. Atm i use custom scripts only for all my sites. But I'm not sure it's wise to create some in-house trade script.

What do you think, what's the best way to do it. Does it make a sense since tgp and cj traffic is decreasing?

Any recommendations and suggestions are welcome.