I'm still here, Stepped away for a bit... sorry.
I thought you already replaced the battery.
If the starter is ok, another possibility could be the positive battery cable itself, or there could be a poor connection on the starter side of the positive battery cable. You would have to determine if the clicking is coming from the actual starter or if the clicking is just the relays. If the clicking is coming directly from the starter it means that one of two things is definitely wrong, either the starter is not receiving battery voltage at the larger battery cable connection or the starter has failed.
If it is clicking from the starter relay, the problem could be the relay itself or a wiring issue that would require a multimeter to diagnose.
Do you have access to one? If so, I can look up the wiring diagrams and help you get it figured out... Just let me know and I can help you out..
Remember this could take a bit of back and forth communication between us but with a bit of patience on your side I am fairly certain that we can figure this out.
Keep me posted...
PS - I also need to let you know that my responses may be delayed because I may be helping another customer, or I may be temporarily offline. Your understanding is greatly appreciated.