Hi, pretty much I’m getting my first truck and I’m looking at a 2015 gmc Sierra with 115k miles. I’ve done my research and know about the common issues such as AC condenser replacement and other small issues that are no problem for me to replace on my own. I am in an auto shop class in school and consider myself handy enough to do maintenance and other work myself but are there any serious issues I should look for that would make the truck not worth it because of the price of replacing the parts or the amount of work going into it. I’m just looking for pointers and what to expect to have to replace and maintain on the truck any advice helps, thanks.