$825.00 is a lot. I got a JDM D15B 130HP version off the net for $350.00 (midas motors or something on ebay) and then we bought a 2000 EX tranny for $200.00 locally. We used the P28 ECU, axles, and harness from his old EX motor. You can use a P28 if it's the 130HP VTEC version of the D15B. $175.00 for a used ECU? That's crazy. Also, your DX axles may be too weak. I would buy a full changeover. $850.00 would be an okay price for a full D16Z6 changeover.