Quick follow-up. I had the IP replaced after struggling for a few weeks to find someone with a reference and experience. I had it towed ~70 miles. I bought a used IP after sending a message to diesel911 to get his opinion about the symptoms the donor car had. Now, the car runs well. Working on shifter bushings and the auto trans fluid and filter. After that, the cruise control wiki fix and then I have until next summer to get the A/C running.