Can someone help me on wiring these two gauges for my LT1 swap. I am using all autometer gauges.

The wiring harness has a oil pressure sensor and using a factory style (new) sensor above the oil filter. My stand alone harness doesnt have a wire for the oil pressure gauge. the gauge comes with a connector that goes to the supplied sensor - this connector has a purple and grey wire. How can i hook up this gauge to use the factory style sensor i already have? can i somehow connect the purple and grey wires to one of the wires going into the PCM for oil pressure?

For the oil temperature where do i install the temperature sensor (supplied by autometer) for oil? is there a factory location that is plugged that i can use without drilling/tapping? Everything is assembled and installed and if i drill/tap wont that result in metal shards in the engine block? definetely dont want to go this path and take everything apart just to clean a hole if i can avoid it.

Its ok to use teflon tape or teflon liquid seal for the threads into the block for the temp sensor right? wont be too hot?

Thanks for the help.