Would you say that I just need my macbook pro serial number and mac address??
MLB is not the same as serial number. It starts with the same few characters but it is the the Main Logic Board (i.e. motherboard) serial number which is not the same as system serial number. I don't think it's yet known if that needs to be unique so try creating a dummy one with the first 3 characters of your system serial number (i.e. C02) and then 14 other characters. For ROM, use the ethernet mac of en0 on your hack. I don't have time to test whether this works but its worth a shot for those of you without a real mac to use the values from.