Hi there,
I'm a WIndows systems and software engineer and was head-hunted by Microsoft (UK and Ireland) themselves, 4 times, in the span of 2- years.
May I suggest that you come up with an exact specification for the Windows 10 ISO that requires an unattended installation, including:
1) All details needed to enable custom unattended installation. i.e., answers that will usually be typed by user, when performing an hands-on./attended installation, including Product Keys, preferences etc.
2) List of exact features you want included and excluded
3) Security settings wanted or unwanted.
4) Whether this is for a single desktop PC, or a LAN installation
and so on and so forth.
I will confirm further interest, if I hear from you first..