I'm currently just rocking the default HUD since the compact HUD I was using previously doesn't seem to have made it as a new OXZ, and to be honest since I've got more used to this scanner, I no longer find it as hard to see the stalks.
Oolite 1.80
does also still recognise the old-style OXPs.. just put them in the AddOns folder as usual. You can also manually download OXZs and place them in AddOns. Whilst the Expansion manager will recognise them, it marks them as manually installed, and won't offer to update them for you.
So far as CompactHUD goes, it was always just a hud.plist file that you had to put into AddOns/Config/ to use anyway.
However, after seeing the above, I decided to make an OXZ version, with two small-style MFDs in it as well. The new scanner features, "non-linear scanner" and "ultra-zoom" have also been enabled.
If you wish to disable either or both of the new scanner features, simply edit the hud.plist (located inside the Config folder of the OXZ) as follows:
Using any text editor (EXCEPT Windows Notepad, not that that's a problem with Pandora), scroll to the very bottom of the file, where you will see the following two entries:
scanner_non_linear = yes;
scanner_ultra_zoom = yes;
Change the relevant entry from 'yes' to 'no'. Save your changes, and restart Oolite whilst holding down the <Shift> key until you see the spinning Cobra Mk3.
The OXZ is available via the in-game Expansion Manager. (this makes 200 OXZs now available)