Changing MQ4 code of EA (expert advisor) and .dll file

I have a file (mq4) code of EA and a .dll file! This EA works only with this dll file This EA is restricted with unlock code and i also think with expiration date and account type but i dont know! The task is to remove the restrictions and take the code from the dll file into the mq4 file of the EA while saving the performance unchanged. So that the EA can work without this dll file! I think that $70 is fear price to make this job done