This time I am on 7x64 OS and just replace create.ISO.script on ADK project and only ran this single script using WinBuilder 082, oscdimg selected, ISO was created successfully size is 487 MB.
EDIT: New ISO build this time mkisofs selected, ISO was created successfully size is 488 MB.
EDIT-2: Made new ISO's builds but this time selected oscdimg & optimize, and also mkisofs & optimize the last one takes longer, but ISO sizes are the same of those previously created without selecting optimize.