ETA?
Well, my boss wants me back at my desk after next week...

Yes, the fuel gauge "trick" was done!
The 4 cyl and 6 cyl gauges were "blended" to take advantage of both, but mostly it's the 6 cyl gauges (eg, it uses the Hi-Beam light under the tach).
There were many wrinkles that the Docter hadn't encountered especially as his was/is M/T, and mine was/in A/T.

Shifter is the stock Mitsu A/T lever, with the linkage modified and greatly simplified and "adjusted" to make it mechanically shift all 4 forward gears on the 4L60E.
Felt quite firm and precise when I last checked it!
A lot of time, math, metal fab skills, advice, and good old fashioned trial and error made it possible.

A LOT of time poured into it so far.\

...Oh yeah.
My 2.6 was sold locally, and is currently on the road making another driver very happy! Good re-build with a lotta miles still in `er.