Fuel pressure line leak

I recently had a friend work on my car listed above. All he was supposed to do was replace the 6 spark plugs and take off the old valve cover gasket and replace it with the new one. Well, he taped the black boots because he broke them and when I started the car, white smoke came out the tail pipes and under the hood. Not to mention it was backfiring and losing fuel. I drove it as far as I could before I had to pull over because all of the gas ran out. When a different friend looked under the hood, we noticed that the fuel pressure line was not put back together correct and that the nut and bolt were missing that kept the bracket fitting snug around the line. So, we put some gas in my car and it wouldn't start. My friend duct taped around the part and well I'm assuming that the gas seeped out. The next day I took my friend to my car that always works on my car. I went across the street to Del Taco and when I drove up to my car, it was on fire. I put it out and had it towed to his house. So, now he has the casing off of the front and back where the spark plugs go, the housing that holds the brake fluid, because it melted the part the fluid goes in and has left me to fend for myself to fix and put my car back together by myself. I don't have the money to put it in the shop and I also need to check and see what wires might have gotten burnt if any and if so rewire them if possible and then wrap them up with electrical tape. Now mind you I am a female and am not afraid to work on my car, but I am feeling a little overwhelmed with the tasks at hand. Can you please give me a little insight about what I need to do and guide me in the right direction, please?