I’m having trouble understanding quite what the issue is, so my suggestion may be no good but it’s a free fix to try in the first instance...
I’m with Larry, I doubt the engine is seized.
The click of death can come from the gear inhibitor switch on the Jgate gear selector iirc.
I had the issue early on with my own car, I cleaned the switch up and it worked fine. For now try ignition on but don’t attempt to start the car, move the transmission out of park and into neutral and back a few times. Now try to start the car with the selector in neutral position rather than park. That got me through until I had time to sort the switch out. (My symptom for this was as if battery flat or starter stuck).