Thrust into the stud job

I bought an 03 in the beginning of Sept with a plan to do some work on it to make it go a long time and be fun to drive. There is a fellow here that I know who does diesel work on the side in a shop at his house so I made arrangements to have him do it. I was looking forward to helping him after work and learning about my truck from someone who knows more about it than me. I'd had it a couple weeks when I had a no start issue. I let it sit for a few days and got some fuel filters, changed them and voila, I had a truck again. I drove it around that day and that night stopped at a buddies house to look at his camper he was selling. My new truck died in his driveway. I called my mechanic friend and left him a message asking him if he was ready to get started. He called me back a few days later and said he was too busy and didn't have time. I thought about it for a couple days and decided to go ahead and do it myself. Here's my list: egr delete, oil cooler replacement, coolant replacement, head studs, 4" exhaust, coolant filter, dvd nav stereo, back up camera, edge gauges, b&w turnover ball, and zoodad. I didn't want to significantly alter the appearance of my truck. I like to occasionally goose it and go but I don't want to advertise: hot roddin idiot. I may be one but I don't need to tell the world. I did a lot of pulling in my business,( more on that later ) so I didn't want to lift it and affect handling too much.