Starting issues

I prefer to use a piece of wire - helps to eliminate the possibility of touching the "wrong" thing - the wire only needs to be 6-8" long- just about anything except speaker wire.. touch one end to the battery terminal and one to the starter terminal (I think it is the bottom left terminal) you'll likely get a quick spark and the starter will engage.. no need to hold it there - it'll either spin the starter or it won't.. if it does, it is the relay - -

No that is not true If you jumper the relay, and the starter cranks, all that proves is that the relay is not ACTUATING. In that case it could be several things..........

1.....Power not getting to the relay, IE ignition switch problems, wiring through the bulkhead, the mentioned above, seat belt interlock

2.....Relay not grounding through the neutral safety switch, so, mis-adjusted shift linkage, bad switch, poor connections at the switch or broken damaged harness.