Well i was home for the day. Thought id try and snap a pic of the engine harness for the o2 sensor, ponder what i could do before dropping $150 for the OE part. I started with the passenger upstream since that was the easiest to see. Once i had the harness off i thought id give a go mounting the NTK sensors once again, armed with the knowledge that Rock and no sites i posted to seemed to have any knowledge of problems. ^^Mr Bob Exhaust Gasses being the only person to offer any personal input. I'm guessing that the car so old most people have abandoned following.
Anyway with a lot of persistent wiggling and the help of a set of long reach bent nose pliers i was able force and finally seat the replacement sensor. Of course then i had to unclip it, pull out the threaded original and then insert the aftermarket once more. Im on my 4th restart and 35 miles. The light hasn't cycled on (yet) . If i get to 100 miles im hoping ill be okay.
Incase any other First Gens should follow heres a few pics of the Upstream o2 Sensor connection