Congrats and welcome to the forum!

Mechanically, the Crossfire is one of the last great reliable Mercedes, with only minor problems, and well documented (like the crankshaft position sensor, I always carry a spare.)

From your front plate it looks like you're a Minnesotan or bought the car in Minnesota. There's less of us up in this neck of the woods, but give us a little background info and we'll help best we can. First suggestion I will give about all the light issues is don't rule out a bad headlight switch. That was one of the first things I had to replace on my car when I got it. Otherwise, a good overview of fuses (check for blown fuses) and electrical connections (check for loose terminals/wires) should help you start to figure out the problems. There are plenty of resources on this forum too, so start one problem at a time and do some digging, someone else has probably already dealt with it and wrote about it here.