You'd need a gizmo that converts the sensor data

Well, yeah, it's sort of obvious that a device of some kind will be needed,
isn't it?

into NMEA-2000 (not NMEA-0183).

Given the 'emerging' nature of NMEA 2000 I'm not sure I'd want to bother
with the bleeding edge.. The E-series can take NMEA-0183, SeaTalk (slower),
SeaTalk2 (faster) or their ethernet-based SeaTalkHS (fastest). I'd imagine
one that used SeaTalk2 would be best for this display. Especially since
that's what the E-80 manual suggests.

Start with the engine manufacturer?

And I have sent 'em an e-mail inquiry. I'm asking the group to help avoid
the usual hassles of vendor 'recommendations' of products that bring along
their own headaches.

So who supplies the sort of interface that converts from oil, tach, etc,
into SeaTalk 2?