Update: I ordered, received, and installed the new shutoff solenoid and relay. I haven't gotten to the fusible link, and diode yet, but I will. I will be saving the additional relay that I bought, along with the solenoid I took off the truck for down the road.
The truck starts, shuts off, and restarts just like dodge intended. I am so thankful to have my workhorse back!
I'll be making an official thread of the process of upgrading the truck, as it is mostly stock. I'll be taking it a far as 600+hp for the foreseeable future. I don't know yet if I'll take it further than that.
One idea I have, is to do a conversion to 4x4 if that is even a possibility. My cousin has a 97 4x4 with the magnum(I think) v8, and I have a feeling he'd be willing to part with it. So if I had a donor truck for all the 4x4 parts, how hard would it be? The thing that's sticking out in my head would be the computer itself in the 97, which controls the shift timing, would have to be flashed with a diesel setup... let me know your thoughts.
Again, thank you so much for pointing me in the right direction! I've never messed with diesel and was getting frustrated.