Not easy.
- VirtualBox VM settings may or may not need to enable DHCP for Kicksecure but not Whonix in https://github.com/Whonix/Whonix/blob/master/build-steps.d/2600_create-vbox-vm - otherwise networking might break
- Similar for KVM VM settings XML file.
- https://github.com/Whonix/kicksecure-network-conf/blob/master/etc/network/interfaces.d/30_kicksecure needs changes
- There’s an existing DHCP package installed? What pulls it?
- Package dependency might make sense to add here kicksecure-network-conf/debian/control at master · Kicksecure/kicksecure-network-conf · GitHub
Patches welcome.