Unique model, etc.. already been said...
Get your hands on the mind of a good Network manager "or better" that has seen the start up, failures, successes etc..
If he/she is in a position and you can trust them, have them get in as well.
It's not just the knowledge you want from people like this but the Super affilliates that will be driving traffic. Like a good host in the casino that can bring the whales where ever they are..
You can get wannabe affiliates all day.. you can attract advertisers as well... but you'd better deliver performance if you plan on keeping your advertisers..
I do CPA, as well, I do work like graphics, ads, etc for some of these companies. I have a seen more fail that succeed..
Have a look at the ones that are going strong. look as who failed. Having an insider like an NM -- equilivent or better that has been around the block a time or three will know some about the other networks that are kicking a__ or have failed and may be able to offer some insight.
I guess my point is, knowing what not to do is just as, or, more important than knowing what to do.
Kinda rambly, but, maybe a tidbit there to think about.
Regards,
Catfish.