just looking at my maddat cable. that black cap comes off and threads onto the datsun end. I remember someone telling me bluebird gear. could be way off tho. Car looks great btw : )
That front apron stock or aftermarket. Looks like you fitted inserts to the tabs. Im thinking about buys aftermarket apron not sure if it comes with tabs welded on. Decided on rubber yet or waiting to fit rims and see.
the display is just one plug that goes to ecu which is easy. programing setup can be done when tuning. The only down side is you lose the old school look.