How hard of a conversion is the analog to digidash swap for a ea81t, has anyone done this?

All the sending units are different - even the fuel level sending unit. You will need a donor car with all those parts. The wireing is completely different too - so you may want to swap wireing harnesses. The 83/84 digi's are notoriously bad juju, so I would stay away from them at all costs. They tend to die if you even look at them cross-eyed. Very naughty little guys. Sensitive to voltage that hasn't first been cleansed by the pope. But hey - it's your car.

 

GD