My choice is done, ill go for a swap.
Putting around 6000$...it should be ok.
My QUESTION!
My 1995 200sx se-r is surely equipped with obdII!

Can i run a bb sr20det with a BB ecu and keep my sr20de harness?Any problem with the original harness and the OBDII system and sensors.

Is there any extra wire that wiil goes in the bb ecu or jwt modified ecu when ill do my swap?

example , map(pressure) sensor?, vaccum sensors...