Nice car!!!
I know you will find a transmission on this site pretty cheap. But, if for some reason you can't... or you are impatient... here is a link to a salvage yard website that has them for a little as $250 US. You can call or email them and ask for shipping quotes, etc...
http://car-part.com/cgi-bin/se...age=3
You will want to make sure you get one from a 91 or newer since the KA24DE is the engine you have. The KA24E from previous will have the same transmission, but with different sensors.. So it would be easiest to get one from 91-94. I think...
I stopped a Nissan dealer at lunch to pick up a couple things... I asked him about the part # - 31020-45X64
Like I said.... post a thread in the classifieds section.
zeroforum/43
You should have no problem getting one from another member pretty cheap. Hopefully that member will be willing to help you get it shipped out.
Here's another guy that has lots of parts available.. Powerline.
zer...36959