The rattle bucket is dead

[Fla 66 cuda]

Damn thing smoked the main fuse box arriving home from work had a loose ground wire and shorted out on the air intake heat relay and smoked, i don't know what but she won't run anymore so she's dead till i figure out the issues. I have ideas but unsure of which one or all of them. Several of the parts are around 50 bucks each but one of them is over 450+ [which i don't have] so we'll see a lovely end to a lovely day in my lovley life. If any one knows a diesel mechanic that could chat with me i would apprecate it i don,t want to start throwing money at this thing aimlessly.