Some progress..
Sound works using alsa - after loading graphics-KERNEL then alsa-config then alsa: aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC289 Analog [ALC289 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
..and sound-test works.
The clickpad is still something of a mystery and it seems it's seen as both a touchpad and a mouse: /usr/local/lib/libinput/libinput-list-devices
...
Device: VEN_0488:00 0488:105F Mouse
Kernel: /dev/input/event16
Group: 5
Seat: seat0, default
Capabilities: pointer
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: disabled
Nat.scrolling: disabled
Middle emulation: disabled
Calibration: n/a
Scroll methods: button
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: flat *adaptive custom
Rotation: 0.0
Device: VEN_0488:00 0488:105F Touchpad
Kernel: /dev/input/event17
Group: 5
Seat: seat0, default
Size: 128x86mm
Capabilities: touch
Tap-to-click: n/a
Tap-and-drag: n/a
Tap drag lock: n/a
Left-handed: n/a
Nat.scrolling: n/a
Middle emulation: n/a
Calibration: identity matrix
Scroll methods: none
Click methods: none
Disable-w-typing: n/a
Disable-w-trackpointing: n/a
Accel profiles: n/a
Rotation: 0.0
This enables simultaneous left-click right-click to simulate middle-click, which I needed to paste: cat /usr/local/share/X11/xorg.conf.d/30-touchpad.conf
Section "InputClass"
Identifier "libinput touchpad catchall"
MatchIsPointer "on"
MatchDevicePath "/dev/input/event*"
Driver "libinput"
Option "MiddleEmulation" "true"
EndSectionMatchIsTouchpad doesn't work - there are many, many more options in windows for the clickpad including 3 finger and 4 finger gestures...
Bluetooth works as expected using the intel firmware - though I do need to sort the blueman extension out.