create mlm compnesation plan

I own a roofing (storm restoration) company. I want to create a mlm paythat will be 3 levels . My reps get $100 darw for each signed contract that has a claim no. This draw(advancement) is deducted from the first insurance claims check that we receive. Starting out each repp's commission is 7%. Once he or she completes the training, they will move up to 8%. After they generate sales of $250,000 (gross) they will move up to 9% and 1 million in sales will be moved to 10%. In addition, on occassion I will split commissions between two reps, and then my sales trainer will receive up to 3% of all gross payments received by the reps t hat he trains. Not sure how to handle the 3 levels yet. Each rep will receive a small perecentage from each rep the bring into our training. Maybe you can give me some input. That is it in a nutshell. What mlm software do you think will work best? I have wordpress plugin but could use something else if it is better.