electrical problem with 92 Celica

[King_Mack]

Hey guys...I just noticed a little nasty problem. I recently had my alternator replaced, and it looks like the mechanic that I took it to didnt tighten the nut that connected the alternator to the engine. Now, the small wiring piece connecting the two has a small chunk of it missing(im guessing b/c it burnt off) and the bolt that was connecting the wiring lead to the alternator crumbled while I was tightening it. Anyone know if I can just buy a piece and replace it myself?? I really dont wanna call a tow truck, b/c ive spent already 200 bucks on that when i had the battery problem.

Please advise, thanks