For this years senior rep program I decided to go with the following details. Next year I will probably raise the initial package they have to purchase but I want to get a footing in the schools this year and once I get some reps, I can probably get them to recommend someone for the following year.
They have to pay $100 up front for the pictures, and they will get it back after the 3rd successful referral. They also get $20 print credit with each referral.
I will make up a leather press printed book with the pictures for them to show their friends. They have to put down a $200 retainer for this as well, which they will get back at the end of the promotion, or if they choose to keep it after 8 referrals, its theirs and they get their $200 retainer back. I normally charge much more than $200 for this, but I want to make it affordable for them to be a rep, I dont want them to have to turn it down because they cant come up with the $400 for the book. They do not get print credit for these last 5 referrals.
Then they will get $20 print credit for each referral after that. With cash bonuses for 10 referrals, 15 and 20. If I have at least 3 reps in a school, and they each bring in at least 5 referrals, there is a bonus cash bonus for the one that gets the most referrals.
I did the math in excel and Im happy with the figures, the time invested, the expenses and the possible profit after all the cash bonuses.
So far I got one girl that seems very interested, and her mother has even contacted me for more information. So hopefully itll work out. 
Each referral has to buy a minimum package to count as well with a sitting fee, and hopefully each one will buy additional stuff. 