Well, it's generally easier to convert the engine to OBD1, but I don't really know whether or not there any ECUs that will run a D17 on OBD1, or if there's an option to chip an ECU to run it for you.
Can I ask why you want to do a D17 into a 93? It's kind of a weird swap, and a lot of trouble for not a lot of gain it seems like. Also, the aftermarket for that engine really isn't all that great. A D16Z6 would be a much better choice, in my opinion.