I have a 1992 Honda accord automatic tranny that I would like to keep I don't want to run a missing link and a FMU I would rather use a chipped ecu is it possible or would it be easier to swap to a manual transmission and a P06 ecu?

 

Or sell the car, wait a bit, and find a 5spd.

I don't think it's worth the hassle to convert to 5spd. IIRC the free version of Crome can be used with an auto trans. I think Uberdata could be used to, but I'm not too sure if it's still around.