The blower intermittent operation is probably a bad blower motor. Have you cleaned the fuses and slid the push button HVAC control out and checked/wiggled wires for bad connections? Try jiggling the key a little to see if that affects anything. To know for sure, temporarily wire a bulb in place to the blower circuit. If the bulb stays lit
but the blower stops then it is the blower motor.

Instrument lights not working is often a bad/dirty dimmer/rheostat. Try turning it back and forth many times to see if it will self clean its contacts.

Good luck!!!