On the tilt/start problem: I don't think a pinched wire could cause it. When you turn the key, a rod pulls on the ignition switch. The rod could be sticking, but I doubt you've got a wire issue. To figure out for sure, it would be best to pull the column and look at it on your work bench....yeah, it's a little bit of a pain to do, but well worth the time. You'll learn a ton doing it.
On the blinkers: Try changing the bulbs.
On the shifting issue: Sounds like the reverse key out rod is missing. It's located in the engine compartment just behind the valve cover on the drivers side....between the engine and the firewall. It hooks to the lever coming from the steering column.