FWIW, I texted the mechanic this morning. I though maybe he knew something I didn't. I asked him just tell my honestly why he didn't come back, if it was more than he expected or what. No hard feelings, and thanks for returning the parts. He called me right away and was very nice. He has a service manual he is going to make copies of the section I need and send to me. He offered to help any way he could over the phone if (more like when) I run into issues and need advice. So hopefully soon I can get started. OK, so soon may be a month b/c it seems nearly impossible just to keep up with regular things.