Welcome. I think you may more that one issue. You say the key at times will not turn to the full off position and you cannot remove the key. This sounds like ignition interlock system. Do you have the shifter in the column or the console?
As for the starting issue, at times you only hear a click? Where do you hear the click from?
the key removal problem seems to have gone away. Shifter is in console. Before solve d, it could only be removed by jiggling the shifter and turning the wheel.
When key is turned to start engine, speedometer dial lights up, engine does not turn over. If turn signal lever is to left or right, entire dash board blinks on and off with the turn signals. clicking is the relay for turn signal lights.