you do not want to convert to obd2, it is the worst of all OBD's to use. It has absolutely no advantage over either obd1 or 0.
It THINK this is the type of harness you are looking for.
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...sspagename=WDVW
Converting to obd1:
You don't need just this harness, you are are also going to need a few other things.
-Injectors any obd1 240 cc honda injectors should be fine (someone else can help on this too, cause I dunno what he could do with the resistor box)
-OBD1 b16 or GSR Distributor. This is essential, your car will run like complete garbage if you try to repin or anything with the one you have now unless it is obd1
-Possibly the alternator and a few other miscellaneous parts
You can also convert the engine to obd0 also, probably your best choice because of where you are.
-Use the distributor you have from the b16
-Use the injectors you have from the b16
-Use the alternator you have from the b16
-Use the sensors from the b16's manifold on your new one
-there will be a few other little parts
Just wait till someone else with more knowledge then me answers your question to either confirm or fix my answers.