I have EA valid only for demo account used on MT4 platform.
There is a restriction that must be removed, to make the EA works on live account,
and there are few lines plotted on the screen that must be removed also.
The task is to remove those restrictions and plotted lines and make the EA good for a live account
while saving the performance unchanged.
There are not additional .dll files.
I think that $30 is fare price.