I'd start by pulling the dash out of my '90 T-Bird and dropping it into
my '90 Westy.  All electronic, tach, speedo, oil, temp, voltage, and
very nice trip computer.  Then I'd re-mount the current outside temp
(that transmits to the rear weather station also), the altimeter and the
GPS.  But wait: I wouldn't have a clock: clock in the T-Bird is in the
radio (and not visible in daylight!)  Bummer, guess I'll have to abandon
the project.